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Finding the Fourth Proportional to 425,710.92, 587,485.08 and 234,731.10

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Solution

The fourth proportional to 425,710.92, 587,485.08 and 234,731.10 is: 323,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,710.92 : 587,485.08 = 234,731.10 : x
  2. Step 2: Convert to fraction form
    425,710.92/587,485.08 = 234,731.10/x
  3. Step 3: Cross multiply
    425,710.92x = 587,485.08 × 234,731.10
  4. Step 4: Simplify right side
    425,710.92x = 137,901,019,061.99
  5. Step 5: Solve for x
    x = 137,901,019,061.99/425,710.92
  6. Step 6: Final answer
    x = 323,931.13

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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.