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Finding the Fourth Proportional to 424,630.35, 636,924.87 and 158,370.39

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Solution

The fourth proportional to 424,630.35, 636,924.87 and 158,370.39 is: 237,547.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,630.35 : 636,924.87 = 158,370.39 : x
  2. Step 2: Convert to fraction form
    424,630.35/636,924.87 = 158,370.39/x
  3. Step 3: Cross multiply
    424,630.35x = 636,924.87 × 158,370.39
  4. Step 4: Simplify right side
    424,630.35x = 100,870,040,062.60
  5. Step 5: Solve for x
    x = 100,870,040,062.60/424,630.35
  6. Step 6: Final answer
    x = 237,547.88

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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.