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Finding the Fourth Proportional to 862,405.60, 1,181,499.92 and 830,082.97

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Solution

The fourth proportional to 862,405.60, 1,181,499.92 and 830,082.97 is: 1,137,217.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,405.60 : 1,181,499.92 = 830,082.97 : x
  2. Step 2: Convert to fraction form
    862,405.60/1,181,499.92 = 830,082.97/x
  3. Step 3: Cross multiply
    862,405.60x = 1,181,499.92 × 830,082.97
  4. Step 4: Simplify right side
    862,405.60x = 980,742,962,648.36
  5. Step 5: Solve for x
    x = 980,742,962,648.36/862,405.60
  6. Step 6: Final answer
    x = 1,137,217.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.