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Finding the Fourth Proportional to 408,059.40, 612,089.10 and 141,846.83

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Solution

The fourth proportional to 408,059.40, 612,089.10 and 141,846.83 is: 212,770.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,059.40 : 612,089.10 = 141,846.83 : x
  2. Step 2: Convert to fraction form
    408,059.40/612,089.10 = 141,846.83/x
  3. Step 3: Cross multiply
    408,059.40x = 612,089.10 × 141,846.83
  4. Step 4: Simplify right side
    408,059.40x = 86,822,895,452.11
  5. Step 5: Solve for x
    x = 86,822,895,452.11/408,059.40
  6. Step 6: Final answer
    x = 212,770.24

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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.