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Finding the Fourth Proportional to 887,687.20, 1,330,753.20 and 532,842.40

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Solution

The fourth proportional to 887,687.20, 1,330,753.20 and 532,842.40 is: 798,796.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,687.20 : 1,330,753.20 = 532,842.40 : x
  2. Step 2: Convert to fraction form
    887,687.20/1,330,753.20 = 532,842.40/x
  3. Step 3: Cross multiply
    887,687.20x = 1,330,753.20 × 532,842.40
  4. Step 4: Simplify right side
    887,687.20x = 709,081,728,895.68
  5. Step 5: Solve for x
    x = 709,081,728,895.68/887,687.20
  6. Step 6: Final answer
    x = 798,796.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.