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Finding the Fourth Proportional to 1,192,662, 1,645,873.56 and 656,118

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Solution

The fourth proportional to 1,192,662, 1,645,873.56 and 656,118 is: 905,442.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,662 : 1,645,873.56 = 656,118 : x
  2. Step 2: Convert to fraction form
    1,192,662/1,645,873.56 = 656,118/x
  3. Step 3: Cross multiply
    1,192,662x = 1,645,873.56 × 656,118
  4. Step 4: Simplify right side
    1,192,662x = 1,079,887,268,440.08
  5. Step 5: Solve for x
    x = 1,079,887,268,440.08/1,192,662
  6. Step 6: Final answer
    x = 905,442.84

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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.