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Finding the Fourth Proportional to 981,647.72, 1,354,655.84 and 546,062.92

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Solution

The fourth proportional to 981,647.72, 1,354,655.84 and 546,062.92 is: 753,556.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,647.72 : 1,354,655.84 = 546,062.92 : x
  2. Step 2: Convert to fraction form
    981,647.72/1,354,655.84 = 546,062.92/x
  3. Step 3: Cross multiply
    981,647.72x = 1,354,655.84 × 546,062.92
  4. Step 4: Simplify right side
    981,647.72x = 739,727,323,585.45
  5. Step 5: Solve for x
    x = 739,727,323,585.45/981,647.72
  6. Step 6: Final answer
    x = 753,556.81

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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.