Home / 534,136.20-801,657.90-218,819.40

Finding the Fourth Proportional to 534,136.20, 801,657.90 and 218,819.40

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Solution

The fourth proportional to 534,136.20, 801,657.90 and 218,819.40 is: 328,414.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,136.20 : 801,657.90 = 218,819.40 : x
  2. Step 2: Convert to fraction form
    534,136.20/801,657.90 = 218,819.40/x
  3. Step 3: Cross multiply
    534,136.20x = 801,657.90 × 218,819.40
  4. Step 4: Simplify right side
    534,136.20x = 175,418,300,683.26
  5. Step 5: Solve for x
    x = 175,418,300,683.26/534,136.20
  6. Step 6: Final answer
    x = 328,414.93

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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.