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Finding the Fourth Proportional to 5,988,778.40, 8,981,709.60 and 1,728,502.40

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Solution

The fourth proportional to 5,988,778.40, 8,981,709.60 and 1,728,502.40 is: 2,592,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,988,778.40 : 8,981,709.60 = 1,728,502.40 : x
  2. Step 2: Convert to fraction form
    5,988,778.40/8,981,709.60 = 1,728,502.40/x
  3. Step 3: Cross multiply
    5,988,778.40x = 8,981,709.60 × 1,728,502.40
  4. Step 4: Simplify right side
    5,988,778.40x = 15,524,906,599,703.04
  5. Step 5: Solve for x
    x = 15,524,906,599,703.04/5,988,778.40
  6. Step 6: Final answer
    x = 2,592,332.79

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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.