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Finding the Fourth Proportional to 655,064.96, 981,022.80 and 373,729.28

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Solution

The fourth proportional to 655,064.96, 981,022.80 and 373,729.28 is: 559,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,064.96 : 981,022.80 = 373,729.28 : x
  2. Step 2: Convert to fraction form
    655,064.96/981,022.80 = 373,729.28/x
  3. Step 3: Cross multiply
    655,064.96x = 981,022.80 × 373,729.28
  4. Step 4: Simplify right side
    655,064.96x = 366,636,944,707.58
  5. Step 5: Solve for x
    x = 366,636,944,707.58/655,064.96
  6. Step 6: Final answer
    x = 559,695.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.