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Finding the Fourth Proportional to 488,523.80, 732,915.30 and 172,947.80

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Solution

The fourth proportional to 488,523.80, 732,915.30 and 172,947.80 is: 259,467.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,523.80 : 732,915.30 = 172,947.80 : x
  2. Step 2: Convert to fraction form
    488,523.80/732,915.30 = 172,947.80/x
  3. Step 3: Cross multiply
    488,523.80x = 732,915.30 × 172,947.80
  4. Step 4: Simplify right side
    488,523.80x = 126,756,088,721.34
  5. Step 5: Solve for x
    x = 126,756,088,721.34/488,523.80
  6. Step 6: Final answer
    x = 259,467.58

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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.