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Finding the Fourth Proportional to 374,321.52, 516,616.38 and 238,312.02

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Solution

The fourth proportional to 374,321.52, 516,616.38 and 238,312.02 is: 328,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,321.52 : 516,616.38 = 238,312.02 : x
  2. Step 2: Convert to fraction form
    374,321.52/516,616.38 = 238,312.02/x
  3. Step 3: Cross multiply
    374,321.52x = 516,616.38 × 238,312.02
  4. Step 4: Simplify right side
    374,321.52x = 123,115,893,082.89
  5. Step 5: Solve for x
    x = 123,115,893,082.89/374,321.52
  6. Step 6: Final answer
    x = 328,904.13

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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.