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Finding the Fourth Proportional to 384,502.20, 576,446.10 and 162,703.80

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Solution

The fourth proportional to 384,502.20, 576,446.10 and 162,703.80 is: 243,925.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,502.20 : 576,446.10 = 162,703.80 : x
  2. Step 2: Convert to fraction form
    384,502.20/576,446.10 = 162,703.80/x
  3. Step 3: Cross multiply
    384,502.20x = 576,446.10 × 162,703.80
  4. Step 4: Simplify right side
    384,502.20x = 93,789,970,965.18
  5. Step 5: Solve for x
    x = 93,789,970,965.18/384,502.20
  6. Step 6: Final answer
    x = 243,925.71

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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.