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Finding the Fourth Proportional to 448,882.24, 619,456.16 and 247,678.40

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Solution

The fourth proportional to 448,882.24, 619,456.16 and 247,678.40 is: 341,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,882.24 : 619,456.16 = 247,678.40 : x
  2. Step 2: Convert to fraction form
    448,882.24/619,456.16 = 247,678.40/x
  3. Step 3: Cross multiply
    448,882.24x = 619,456.16 × 247,678.40
  4. Step 4: Simplify right side
    448,882.24x = 153,425,910,578.94
  5. Step 5: Solve for x
    x = 153,425,910,578.94/448,882.24
  6. Step 6: Final answer
    x = 341,795.46

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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.