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Finding the Fourth Proportional to 448,849, 619,411.62 and 247,645

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Solution

The fourth proportional to 448,849, 619,411.62 and 247,645 is: 341,750.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,849 : 619,411.62 = 247,645 : x
  2. Step 2: Convert to fraction form
    448,849/619,411.62 = 247,645/x
  3. Step 3: Cross multiply
    448,849x = 619,411.62 × 247,645
  4. Step 4: Simplify right side
    448,849x = 153,394,190,634.90
  5. Step 5: Solve for x
    x = 153,394,190,634.90/448,849
  6. Step 6: Final answer
    x = 341,750.10

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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.