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Finding the Fourth Proportional to 541,132.40, 811,698.60 and 225,815.60

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Solution

The fourth proportional to 541,132.40, 811,698.60 and 225,815.60 is: 338,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,132.40 : 811,698.60 = 225,815.60 : x
  2. Step 2: Convert to fraction form
    541,132.40/811,698.60 = 225,815.60/x
  3. Step 3: Cross multiply
    541,132.40x = 811,698.60 × 225,815.60
  4. Step 4: Simplify right side
    541,132.40x = 183,294,206,378.16
  5. Step 5: Solve for x
    x = 183,294,206,378.16/541,132.40
  6. Step 6: Final answer
    x = 338,723.40

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Double scale
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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.