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Finding the Fourth Proportional to 524,521.20, 786,781.79 and 169,535.21

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Solution

The fourth proportional to 524,521.20, 786,781.79 and 169,535.21 is: 254,302.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,521.20 : 786,781.79 = 169,535.21 : x
  2. Step 2: Convert to fraction form
    524,521.20/786,781.79 = 169,535.21/x
  3. Step 3: Cross multiply
    524,521.20x = 786,781.79 × 169,535.21
  4. Step 4: Simplify right side
    524,521.20x = 133,387,220,306.11
  5. Step 5: Solve for x
    x = 133,387,220,306.11/524,521.20
  6. Step 6: Final answer
    x = 254,302.82

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Double scale
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Similar ratio
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1.5x scale

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.