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Finding the Fourth Proportional to 424,062.56, 636,039.12 and 353,426.48

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Solution

The fourth proportional to 424,062.56, 636,039.12 and 353,426.48 is: 530,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,062.56 : 636,039.12 = 353,426.48 : x
  2. Step 2: Convert to fraction form
    424,062.56/636,039.12 = 353,426.48/x
  3. Step 3: Cross multiply
    424,062.56x = 636,039.12 × 353,426.48
  4. Step 4: Simplify right side
    424,062.56x = 224,793,067,323.90
  5. Step 5: Solve for x
    x = 224,793,067,323.90/424,062.56
  6. Step 6: Final answer
    x = 530,094.11

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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.