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Finding the Fourth Proportional to 534,688.43, 801,792.88 and 318,649.18

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Solution

The fourth proportional to 534,688.43, 801,792.88 and 318,649.18 is: 477,830.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,688.43 : 801,792.88 = 318,649.18 : x
  2. Step 2: Convert to fraction form
    534,688.43/801,792.88 = 318,649.18/x
  3. Step 3: Cross multiply
    534,688.43x = 801,792.88 × 318,649.18
  4. Step 4: Simplify right side
    534,688.43x = 255,490,639,732.87
  5. Step 5: Solve for x
    x = 255,490,639,732.87/534,688.43
  6. Step 6: Final answer
    x = 477,830.88

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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.