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Finding the Fourth Proportional to 444,129.30, 665,209.80 and 365,397.30

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Solution

The fourth proportional to 444,129.30, 665,209.80 and 365,397.30 is: 547,286.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,129.30 : 665,209.80 = 365,397.30 : x
  2. Step 2: Convert to fraction form
    444,129.30/665,209.80 = 365,397.30/x
  3. Step 3: Cross multiply
    444,129.30x = 665,209.80 × 365,397.30
  4. Step 4: Simplify right side
    444,129.30x = 243,065,864,853.54
  5. Step 5: Solve for x
    x = 243,065,864,853.54/444,129.30
  6. Step 6: Final answer
    x = 547,286.26

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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.