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Finding the Fourth Proportional to 526,958.57, 727,202.96 and 285,240.40

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Solution

The fourth proportional to 526,958.57, 727,202.96 and 285,240.40 is: 393,631.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,958.57 : 727,202.96 = 285,240.40 : x
  2. Step 2: Convert to fraction form
    526,958.57/727,202.96 = 285,240.40/x
  3. Step 3: Cross multiply
    526,958.57x = 727,202.96 × 285,240.40
  4. Step 4: Simplify right side
    526,958.57x = 207,427,663,191.58
  5. Step 5: Solve for x
    x = 207,427,663,191.58/526,958.57
  6. Step 6: Final answer
    x = 393,631.82

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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.