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Finding the Fourth Proportional to 655,086.96, 981,055.80 and 373,751.28

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Solution

The fourth proportional to 655,086.96, 981,055.80 and 373,751.28 is: 559,728.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,086.96 : 981,055.80 = 373,751.28 : x
  2. Step 2: Convert to fraction form
    655,086.96/981,055.80 = 373,751.28/x
  3. Step 3: Cross multiply
    655,086.96x = 981,055.80 × 373,751.28
  4. Step 4: Simplify right side
    655,086.96x = 366,670,861,001.42
  5. Step 5: Solve for x
    x = 366,670,861,001.42/655,086.96
  6. Step 6: Final answer
    x = 559,728.53

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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.