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Finding the Fourth Proportional to 555,499.28, 766,604.76 and 313,792.04

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Solution

The fourth proportional to 555,499.28, 766,604.76 and 313,792.04 is: 433,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,499.28 : 766,604.76 = 313,792.04 : x
  2. Step 2: Convert to fraction form
    555,499.28/766,604.76 = 313,792.04/x
  3. Step 3: Cross multiply
    555,499.28x = 766,604.76 × 313,792.04
  4. Step 4: Simplify right side
    555,499.28x = 240,554,472,253.90
  5. Step 5: Solve for x
    x = 240,554,472,253.90/555,499.28
  6. Step 6: Final answer
    x = 433,041.91

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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.