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Finding the Fourth Proportional to 526,229.76, 726,186.24 and 287,765.76

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Solution

The fourth proportional to 526,229.76, 726,186.24 and 287,765.76 is: 397,110.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,229.76 : 726,186.24 = 287,765.76 : x
  2. Step 2: Convert to fraction form
    526,229.76/726,186.24 = 287,765.76/x
  3. Step 3: Cross multiply
    526,229.76x = 726,186.24 × 287,765.76
  4. Step 4: Simplify right side
    526,229.76x = 208,971,535,255.14
  5. Step 5: Solve for x
    x = 208,971,535,255.14/526,229.76
  6. Step 6: Final answer
    x = 397,110.83

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1.5x scale

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.