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Finding the Fourth Proportional to 576,655.96, 865,294.14 and 239,929

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Solution

The fourth proportional to 576,655.96, 865,294.14 and 239,929 is: 360,022.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,655.96 : 865,294.14 = 239,929 : x
  2. Step 2: Convert to fraction form
    576,655.96/865,294.14 = 239,929/x
  3. Step 3: Cross multiply
    576,655.96x = 865,294.14 × 239,929
  4. Step 4: Simplify right side
    576,655.96x = 207,609,157,716.06
  5. Step 5: Solve for x
    x = 207,609,157,716.06/576,655.96
  6. Step 6: Final answer
    x = 360,022.56

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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.