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Finding the Fourth Proportional to 424,074.67, 636,327.26 and 282,018.76

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Solution

The fourth proportional to 424,074.67, 636,327.26 and 282,018.76 is: 423,171.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,074.67 : 636,327.26 = 282,018.76 : x
  2. Step 2: Convert to fraction form
    424,074.67/636,327.26 = 282,018.76/x
  3. Step 3: Cross multiply
    424,074.67x = 636,327.26 × 282,018.76
  4. Step 4: Simplify right side
    424,074.67x = 179,456,224,819.40
  5. Step 5: Solve for x
    x = 179,456,224,819.40/424,074.67
  6. Step 6: Final answer
    x = 423,171.29

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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.