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Finding the Fourth Proportional to 541,294.80, 811,942.20 and 225,646.80

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Solution

The fourth proportional to 541,294.80, 811,942.20 and 225,646.80 is: 338,470.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,294.80 : 811,942.20 = 225,646.80 : x
  2. Step 2: Convert to fraction form
    541,294.80/811,942.20 = 225,646.80/x
  3. Step 3: Cross multiply
    541,294.80x = 811,942.20 × 225,646.80
  4. Step 4: Simplify right side
    541,294.80x = 183,212,159,214.96
  5. Step 5: Solve for x
    x = 183,212,159,214.96/541,294.80
  6. Step 6: Final answer
    x = 338,470.20

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Half scale
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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.