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Finding the Fourth Proportional to 981,648.72, 1,354,657.22 and 546,063.92

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Solution

The fourth proportional to 981,648.72, 1,354,657.22 and 546,063.92 is: 753,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,648.72 : 1,354,657.22 = 546,063.92 : x
  2. Step 2: Convert to fraction form
    981,648.72/1,354,657.22 = 546,063.92/x
  3. Step 3: Cross multiply
    981,648.72x = 1,354,657.22 × 546,063.92
  4. Step 4: Simplify right side
    981,648.72x = 739,729,431,809.50
  5. Step 5: Solve for x
    x = 739,729,431,809.50/981,648.72
  6. Step 6: Final answer
    x = 753,558.19

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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.