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Finding the Fourth Proportional to 418,654.59, 627,812.85 and 162,352.22

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Solution

The fourth proportional to 418,654.59, 627,812.85 and 162,352.22 is: 243,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,654.59 : 627,812.85 = 162,352.22 : x
  2. Step 2: Convert to fraction form
    418,654.59/627,812.85 = 162,352.22/x
  3. Step 3: Cross multiply
    418,654.59x = 627,812.85 × 162,352.22
  4. Step 4: Simplify right side
    418,654.59x = 101,926,806,802.96
  5. Step 5: Solve for x
    x = 101,926,806,802.96/418,654.59
  6. Step 6: Final answer
    x = 243,462.77

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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.