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Finding the Fourth Proportional to 997,591.60, 1,497,769.80 and 787,466.80

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Solution

The fourth proportional to 997,591.60, 1,497,769.80 and 787,466.80 is: 1,182,291.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    997,591.60 : 1,497,769.80 = 787,466.80 : x
  2. Step 2: Convert to fraction form
    997,591.60/1,497,769.80 = 787,466.80/x
  3. Step 3: Cross multiply
    997,591.60x = 1,497,769.80 × 787,466.80
  4. Step 4: Simplify right side
    997,591.60x = 1,179,443,991,542.64
  5. Step 5: Solve for x
    x = 1,179,443,991,542.64/997,591.60
  6. Step 6: Final answer
    x = 1,182,291.42

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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.