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Finding the Fourth Proportional to 533,559.20, 736,375.20 and 307,248.80

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Solution

The fourth proportional to 533,559.20, 736,375.20 and 307,248.80 is: 424,039.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,559.20 : 736,375.20 = 307,248.80 : x
  2. Step 2: Convert to fraction form
    533,559.20/736,375.20 = 307,248.80/x
  3. Step 3: Cross multiply
    533,559.20x = 736,375.20 × 307,248.80
  4. Step 4: Simplify right side
    533,559.20x = 226,250,396,549.76
  5. Step 5: Solve for x
    x = 226,250,396,549.76/533,559.20
  6. Step 6: Final answer
    x = 424,039.91

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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.