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Finding the Fourth Proportional to 425,620.90, 587,360.78 and 234,641.13

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Solution

The fourth proportional to 425,620.90, 587,360.78 and 234,641.13 is: 323,806.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,620.90 : 587,360.78 = 234,641.13 : x
  2. Step 2: Convert to fraction form
    425,620.90/587,360.78 = 234,641.13/x
  3. Step 3: Cross multiply
    425,620.90x = 587,360.78 × 234,641.13
  4. Step 4: Simplify right side
    425,620.90x = 137,818,997,136.88
  5. Step 5: Solve for x
    x = 137,818,997,136.88/425,620.90
  6. Step 6: Final answer
    x = 323,806.93

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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.