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Finding the Fourth Proportional to 448,404.56, 618,802.52 and 247,207.76

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Solution

The fourth proportional to 448,404.56, 618,802.52 and 247,207.76 is: 341,149.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,404.56 : 618,802.52 = 247,207.76 : x
  2. Step 2: Convert to fraction form
    448,404.56/618,802.52 = 247,207.76/x
  3. Step 3: Cross multiply
    448,404.56x = 618,802.52 × 247,207.76
  4. Step 4: Simplify right side
    448,404.56x = 152,972,784,851.56
  5. Step 5: Solve for x
    x = 152,972,784,851.56/448,404.56
  6. Step 6: Final answer
    x = 341,149.04

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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.