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Finding the Fourth Proportional to 487,244.40, 730,866.60 and 132,313.20

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Solution

The fourth proportional to 487,244.40, 730,866.60 and 132,313.20 is: 198,469.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,244.40 : 730,866.60 = 132,313.20 : x
  2. Step 2: Convert to fraction form
    487,244.40/730,866.60 = 132,313.20/x
  3. Step 3: Cross multiply
    487,244.40x = 730,866.60 × 132,313.20
  4. Step 4: Simplify right side
    487,244.40x = 96,703,298,619.12
  5. Step 5: Solve for x
    x = 96,703,298,619.12/487,244.40
  6. Step 6: Final answer
    x = 198,469.80

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Similar ratio
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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.