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Finding the Fourth Proportional to 587,781.60, 881,701.20 and 307,845.60

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Solution

The fourth proportional to 587,781.60, 881,701.20 and 307,845.60 is: 461,783.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,781.60 : 881,701.20 = 307,845.60 : x
  2. Step 2: Convert to fraction form
    587,781.60/881,701.20 = 307,845.60/x
  3. Step 3: Cross multiply
    587,781.60x = 881,701.20 × 307,845.60
  4. Step 4: Simplify right side
    587,781.60x = 271,427,834,934.72
  5. Step 5: Solve for x
    x = 271,427,834,934.72/587,781.60
  6. Step 6: Final answer
    x = 461,783.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.