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Finding the Fourth Proportional to 382,502.10, 573,753.15 and 230,286.90

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Solution

The fourth proportional to 382,502.10, 573,753.15 and 230,286.90 is: 345,430.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,502.10 : 573,753.15 = 230,286.90 : x
  2. Step 2: Convert to fraction form
    382,502.10/573,753.15 = 230,286.90/x
  3. Step 3: Cross multiply
    382,502.10x = 573,753.15 × 230,286.90
  4. Step 4: Simplify right side
    382,502.10x = 132,127,834,278.74
  5. Step 5: Solve for x
    x = 132,127,834,278.74/382,502.10
  6. Step 6: Final answer
    x = 345,430.35

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Half scale
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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.