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Finding the Fourth Proportional to 655,086.46, 981,055.01 and 373,750.78

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Solution

The fourth proportional to 655,086.46, 981,055.01 and 373,750.78 is: 559,727.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,086.46 : 981,055.01 = 373,750.78 : x
  2. Step 2: Convert to fraction form
    655,086.46/981,055.01 = 373,750.78/x
  3. Step 3: Cross multiply
    655,086.46x = 981,055.01 × 373,750.78
  4. Step 4: Simplify right side
    655,086.46x = 366,670,075,210.41
  5. Step 5: Solve for x
    x = 366,670,075,210.41/655,086.46
  6. Step 6: Final answer
    x = 559,727.76

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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.