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Finding the Fourth Proportional to 541,438.80, 812,158.20 and 225,854.70

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Solution

The fourth proportional to 541,438.80, 812,158.20 and 225,854.70 is: 338,782.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,438.80 : 812,158.20 = 225,854.70 : x
  2. Step 2: Convert to fraction form
    541,438.80/812,158.20 = 225,854.70/x
  3. Step 3: Cross multiply
    541,438.80x = 812,158.20 × 225,854.70
  4. Step 4: Simplify right side
    541,438.80x = 183,429,746,613.54
  5. Step 5: Solve for x
    x = 183,429,746,613.54/541,438.80
  6. Step 6: Final answer
    x = 338,782.05

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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.