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Finding the Fourth Proportional to 448,864.44, 619,389.90 and 247,647.48

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Solution

The fourth proportional to 448,864.44, 619,389.90 and 247,647.48 is: 341,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,864.44 : 619,389.90 = 247,647.48 : x
  2. Step 2: Convert to fraction form
    448,864.44/619,389.90 = 247,647.48/x
  3. Step 3: Cross multiply
    448,864.44x = 619,389.90 × 247,647.48
  4. Step 4: Simplify right side
    448,864.44x = 153,390,347,872.45
  5. Step 5: Solve for x
    x = 153,390,347,872.45/448,864.44
  6. Step 6: Final answer
    x = 341,729.78

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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.