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Finding the Fourth Proportional to 526,235.12, 726,203.85 and 284,517.12

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Solution

The fourth proportional to 526,235.12, 726,203.85 and 284,517.12 is: 392,633.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,235.12 : 726,203.85 = 284,517.12 : x
  2. Step 2: Convert to fraction form
    526,235.12/726,203.85 = 284,517.12/x
  3. Step 3: Cross multiply
    526,235.12x = 726,203.85 × 284,517.12
  4. Step 4: Simplify right side
    526,235.12x = 206,617,431,191.65
  5. Step 5: Solve for x
    x = 206,617,431,191.65/526,235.12
  6. Step 6: Final answer
    x = 392,633.30

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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.