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Finding the Fourth Proportional to 558,871.20, 838,306.80 and 444,709.80

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Solution

The fourth proportional to 558,871.20, 838,306.80 and 444,709.80 is: 667,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,871.20 : 838,306.80 = 444,709.80 : x
  2. Step 2: Convert to fraction form
    558,871.20/838,306.80 = 444,709.80/x
  3. Step 3: Cross multiply
    558,871.20x = 838,306.80 × 444,709.80
  4. Step 4: Simplify right side
    558,871.20x = 372,803,249,366.64
  5. Step 5: Solve for x
    x = 372,803,249,366.64/558,871.20
  6. Step 6: Final answer
    x = 667,064.70

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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.