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Finding the Fourth Proportional to 541,387.20, 812,080.80 and 275,666.70

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Solution

The fourth proportional to 541,387.20, 812,080.80 and 275,666.70 is: 413,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,387.20 : 812,080.80 = 275,666.70 : x
  2. Step 2: Convert to fraction form
    541,387.20/812,080.80 = 275,666.70/x
  3. Step 3: Cross multiply
    541,387.20x = 812,080.80 × 275,666.70
  4. Step 4: Simplify right side
    541,387.20x = 223,863,634,269.36
  5. Step 5: Solve for x
    x = 223,863,634,269.36/541,387.20
  6. Step 6: Final answer
    x = 413,500.05

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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.