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Finding the Fourth Proportional to 448,861.44, 619,424.64 and 247,658.88

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Solution

The fourth proportional to 448,861.44, 619,424.64 and 247,658.88 is: 341,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,861.44 : 619,424.64 = 247,658.88 : x
  2. Step 2: Convert to fraction form
    448,861.44/619,424.64 = 247,658.88/x
  3. Step 3: Cross multiply
    448,861.44x = 619,424.64 × 247,658.88
  4. Step 4: Simplify right side
    448,861.44x = 153,406,012,586.80
  5. Step 5: Solve for x
    x = 153,406,012,586.80/448,861.44
  6. Step 6: Final answer
    x = 341,766.97

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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.