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Finding the Fourth Proportional to 396,920.70, 547,737.93 and 227,151.18

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Solution

The fourth proportional to 396,920.70, 547,737.93 and 227,151.18 is: 313,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,920.70 : 547,737.93 = 227,151.18 : x
  2. Step 2: Convert to fraction form
    396,920.70/547,737.93 = 227,151.18/x
  3. Step 3: Cross multiply
    396,920.70x = 547,737.93 × 227,151.18
  4. Step 4: Simplify right side
    396,920.70x = 124,419,317,130.26
  5. Step 5: Solve for x
    x = 124,419,317,130.26/396,920.70
  6. Step 6: Final answer
    x = 313,461.40

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1.5x scale

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.