Home / 1,280,827,451.20-1,767,543,394.24-694,116,587.20

Finding the Fourth Proportional to 1,280,827,451.20, 1,767,543,394.24 and 694,116,587.20

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Solution

The fourth proportional to 1,280,827,451.20, 1,767,543,394.24 and 694,116,587.20 is: 957,881,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,827,451.20 : 1,767,543,394.24 = 694,116,587.20 : x
  2. Step 2: Convert to fraction form
    1,280,827,451.20/1,767,543,394.24 = 694,116,587.20/x
  3. Step 3: Cross multiply
    1,280,827,451.20x = 1,767,543,394.24 × 694,116,587.20
  4. Step 4: Simplify right side
    1,280,827,451.20x = 1,226,881,188,537,773,056
  5. Step 5: Solve for x
    x = 1,226,881,188,537,773,056/1,280,827,451.20
  6. Step 6: Final answer
    x = 957,881,709.51

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Half scale
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Double scale
Find fourth proportional to 1,280,827,452.20, 1,767,543,395.62 and 694,116,588.20
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.