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Finding the Fourth Proportional to 776,728.32, 1,165,134 and 244,290.87

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Solution

The fourth proportional to 776,728.32, 1,165,134 and 244,290.87 is: 366,449.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,728.32 : 1,165,134 = 244,290.87 : x
  2. Step 2: Convert to fraction form
    776,728.32/1,165,134 = 244,290.87/x
  3. Step 3: Cross multiply
    776,728.32x = 1,165,134 × 244,290.87
  4. Step 4: Simplify right side
    776,728.32x = 284,631,598,526.58
  5. Step 5: Solve for x
    x = 284,631,598,526.58/776,728.32
  6. Step 6: Final answer
    x = 366,449.36

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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.