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Finding the Fourth Proportional to 655,076.46, 981,040.05 and 373,740.78

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Solution

The fourth proportional to 655,076.46, 981,040.05 and 373,740.78 is: 559,712.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,076.46 : 981,040.05 = 373,740.78 : x
  2. Step 2: Convert to fraction form
    655,076.46/981,040.05 = 373,740.78/x
  3. Step 3: Cross multiply
    655,076.46x = 981,040.05 × 373,740.78
  4. Step 4: Simplify right side
    655,076.46x = 366,654,673,498.24
  5. Step 5: Solve for x
    x = 366,654,673,498.24/655,076.46
  6. Step 6: Final answer
    x = 559,712.79

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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.