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Finding the Fourth Proportional to 526,882.96, 727,098.60 and 288,418.96

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Solution

The fourth proportional to 526,882.96, 727,098.60 and 288,418.96 is: 398,018.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,882.96 : 727,098.60 = 288,418.96 : x
  2. Step 2: Convert to fraction form
    526,882.96/727,098.60 = 288,418.96/x
  3. Step 3: Cross multiply
    526,882.96x = 727,098.60 × 288,418.96
  4. Step 4: Simplify right side
    526,882.96x = 209,709,022,029.46
  5. Step 5: Solve for x
    x = 209,709,022,029.46/526,882.96
  6. Step 6: Final answer
    x = 398,018.23

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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.