Home / 1,456,141.20-2,184,211.80-391,290.90

Finding the Fourth Proportional to 1,456,141.20, 2,184,211.80 and 391,290.90

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Solution

The fourth proportional to 1,456,141.20, 2,184,211.80 and 391,290.90 is: 586,936.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,141.20 : 2,184,211.80 = 391,290.90 : x
  2. Step 2: Convert to fraction form
    1,456,141.20/2,184,211.80 = 391,290.90/x
  3. Step 3: Cross multiply
    1,456,141.20x = 2,184,211.80 × 391,290.90
  4. Step 4: Simplify right side
    1,456,141.20x = 854,662,201,012.62
  5. Step 5: Solve for x
    x = 854,662,201,012.62/1,456,141.20
  6. Step 6: Final answer
    x = 586,936.35

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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.