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Finding the Fourth Proportional to 424,687.32, 586,092.70 and 243,429.40

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Solution

The fourth proportional to 424,687.32, 586,092.70 and 243,429.40 is: 335,946.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,687.32 : 586,092.70 = 243,429.40 : x
  2. Step 2: Convert to fraction form
    424,687.32/586,092.70 = 243,429.40/x
  3. Step 3: Cross multiply
    424,687.32x = 586,092.70 × 243,429.40
  4. Step 4: Simplify right side
    424,687.32x = 142,672,194,305.38
  5. Step 5: Solve for x
    x = 142,672,194,305.38/424,687.32
  6. Step 6: Final answer
    x = 335,946.44

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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.