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Finding the Fourth Proportional to 704,694.45, 972,480.89 and 382,404.53

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Solution

The fourth proportional to 704,694.45, 972,480.89 and 382,404.53 is: 527,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,694.45 : 972,480.89 = 382,404.53 : x
  2. Step 2: Convert to fraction form
    704,694.45/972,480.89 = 382,404.53/x
  3. Step 3: Cross multiply
    704,694.45x = 972,480.89 × 382,404.53
  4. Step 4: Simplify right side
    704,694.45x = 371,881,098,193.61
  5. Step 5: Solve for x
    x = 371,881,098,193.61/704,694.45
  6. Step 6: Final answer
    x = 527,719.64

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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.