Home / 1,211,657.40-1,817,486.10-580,246.20

Finding the Fourth Proportional to 1,211,657.40, 1,817,486.10 and 580,246.20

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Solution

The fourth proportional to 1,211,657.40, 1,817,486.10 and 580,246.20 is: 870,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,657.40 : 1,817,486.10 = 580,246.20 : x
  2. Step 2: Convert to fraction form
    1,211,657.40/1,817,486.10 = 580,246.20/x
  3. Step 3: Cross multiply
    1,211,657.40x = 1,817,486.10 × 580,246.20
  4. Step 4: Simplify right side
    1,211,657.40x = 1,054,589,403,077.82
  5. Step 5: Solve for x
    x = 1,054,589,403,077.82/1,211,657.40
  6. Step 6: Final answer
    x = 870,369.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.