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Finding the Fourth Proportional to 527,600.85, 728,126.11 and 298,179.33

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Solution

The fourth proportional to 527,600.85, 728,126.11 and 298,179.33 is: 411,508.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,600.85 : 728,126.11 = 298,179.33 : x
  2. Step 2: Convert to fraction form
    527,600.85/728,126.11 = 298,179.33/x
  3. Step 3: Cross multiply
    527,600.85x = 728,126.11 × 298,179.33
  4. Step 4: Simplify right side
    527,600.85x = 217,112,155,635.31
  5. Step 5: Solve for x
    x = 217,112,155,635.31/527,600.85
  6. Step 6: Final answer
    x = 411,508.35

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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.