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Finding the Fourth Proportional to 587,772.60, 881,687.70 and 307,836.60

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Solution

The fourth proportional to 587,772.60, 881,687.70 and 307,836.60 is: 461,769.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,772.60 : 881,687.70 = 307,836.60 : x
  2. Step 2: Convert to fraction form
    587,772.60/881,687.70 = 307,836.60/x
  3. Step 3: Cross multiply
    587,772.60x = 881,687.70 × 307,836.60
  4. Step 4: Simplify right side
    587,772.60x = 271,415,743,829.82
  5. Step 5: Solve for x
    x = 271,415,743,829.82/587,772.60
  6. Step 6: Final answer
    x = 461,769.98

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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.