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Finding the Fourth Proportional to 382,615.80, 572,562.90 and 333,238.20

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Solution

The fourth proportional to 382,615.80, 572,562.90 and 333,238.20 is: 498,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,615.80 : 572,562.90 = 333,238.20 : x
  2. Step 2: Convert to fraction form
    382,615.80/572,562.90 = 333,238.20/x
  3. Step 3: Cross multiply
    382,615.80x = 572,562.90 × 333,238.20
  4. Step 4: Simplify right side
    382,615.80x = 190,799,830,182.78
  5. Step 5: Solve for x
    x = 190,799,830,182.78/382,615.80
  6. Step 6: Final answer
    x = 498,672.11

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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.