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Finding the Fourth Proportional to 1,198,656, 1,654,145.28 and 662,112

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Solution

The fourth proportional to 1,198,656, 1,654,145.28 and 662,112 is: 913,714.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,656 : 1,654,145.28 = 662,112 : x
  2. Step 2: Convert to fraction form
    1,198,656/1,654,145.28 = 662,112/x
  3. Step 3: Cross multiply
    1,198,656x = 1,654,145.28 × 662,112
  4. Step 4: Simplify right side
    1,198,656x = 1,095,229,439,631.36
  5. Step 5: Solve for x
    x = 1,095,229,439,631.36/1,198,656
  6. Step 6: Final answer
    x = 913,714.56

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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.