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Finding the Fourth Proportional to 418,706.18, 627,559 and 152,154.62

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Solution

The fourth proportional to 418,706.18, 627,559 and 152,154.62 is: 228,050.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,706.18 : 627,559 = 152,154.62 : x
  2. Step 2: Convert to fraction form
    418,706.18/627,559 = 152,154.62/x
  3. Step 3: Cross multiply
    418,706.18x = 627,559 × 152,154.62
  4. Step 4: Simplify right side
    418,706.18x = 95,486,001,172.58
  5. Step 5: Solve for x
    x = 95,486,001,172.58/418,706.18
  6. Step 6: Final answer
    x = 228,050.14

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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.