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Finding the Fourth Proportional to 873,059.52, 1,204,809.52 and 491,086.16

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Solution

The fourth proportional to 873,059.52, 1,204,809.52 and 491,086.16 is: 677,691.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,059.52 : 1,204,809.52 = 491,086.16 : x
  2. Step 2: Convert to fraction form
    873,059.52/1,204,809.52 = 491,086.16/x
  3. Step 3: Cross multiply
    873,059.52x = 1,204,809.52 × 491,086.16
  4. Step 4: Simplify right side
    873,059.52x = 591,665,280,708.24
  5. Step 5: Solve for x
    x = 591,665,280,708.24/873,059.52
  6. Step 6: Final answer
    x = 677,691.80

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Double scale
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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.