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Finding the Fourth Proportional to 355,141.13, 532,710.72 and 292,560.12

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Solution

The fourth proportional to 355,141.13, 532,710.72 and 292,560.12 is: 438,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,141.13 : 532,710.72 = 292,560.12 : x
  2. Step 2: Convert to fraction form
    355,141.13/532,710.72 = 292,560.12/x
  3. Step 3: Cross multiply
    355,141.13x = 532,710.72 × 292,560.12
  4. Step 4: Simplify right side
    355,141.13x = 155,849,912,168.49
  5. Step 5: Solve for x
    x = 155,849,912,168.49/355,141.13
  6. Step 6: Final answer
    x = 438,839.38

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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.