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Finding the Fourth Proportional to 625,089.10, 862,622.91 and 338,609.11

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Solution

The fourth proportional to 625,089.10, 862,622.91 and 338,609.11 is: 467,280.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,089.10 : 862,622.91 = 338,609.11 : x
  2. Step 2: Convert to fraction form
    625,089.10/862,622.91 = 338,609.11/x
  3. Step 3: Cross multiply
    625,089.10x = 862,622.91 × 338,609.11
  4. Step 4: Simplify right side
    625,089.10x = 292,091,975,820.71
  5. Step 5: Solve for x
    x = 292,091,975,820.71/625,089.10
  6. Step 6: Final answer
    x = 467,280.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.