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Finding the Fourth Proportional to 558,861.20, 838,291.80 and 444,699.80

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Solution

The fourth proportional to 558,861.20, 838,291.80 and 444,699.80 is: 667,049.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,861.20 : 838,291.80 = 444,699.80 : x
  2. Step 2: Convert to fraction form
    558,861.20/838,291.80 = 444,699.80/x
  3. Step 3: Cross multiply
    558,861.20x = 838,291.80 × 444,699.80
  4. Step 4: Simplify right side
    558,861.20x = 372,788,195,801.64
  5. Step 5: Solve for x
    x = 372,788,195,801.64/558,861.20
  6. Step 6: Final answer
    x = 667,049.70

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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.