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Finding the Fourth Proportional to 2,079,146.78, 2,869,232.54 and 1,161,414.59

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Solution

The fourth proportional to 2,079,146.78, 2,869,232.54 and 1,161,414.59 is: 1,602,757.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079,146.78 : 2,869,232.54 = 1,161,414.59 : x
  2. Step 2: Convert to fraction form
    2,079,146.78/2,869,232.54 = 1,161,414.59/x
  3. Step 3: Cross multiply
    2,079,146.78x = 2,869,232.54 × 1,161,414.59
  4. Step 4: Simplify right side
    2,079,146.78x = 3,332,368,535,424.77
  5. Step 5: Solve for x
    x = 3,332,368,535,424.77/2,079,146.78
  6. Step 6: Final answer
    x = 1,602,757.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.