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Finding the Fourth Proportional to 981,323.20, 1,471,984.80 and 981,323.20

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Solution

The fourth proportional to 981,323.20, 1,471,984.80 and 981,323.20 is: 1,471,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,323.20 : 1,471,984.80 = 981,323.20 : x
  2. Step 2: Convert to fraction form
    981,323.20/1,471,984.80 = 981,323.20/x
  3. Step 3: Cross multiply
    981,323.20x = 1,471,984.80 × 981,323.20
  4. Step 4: Simplify right side
    981,323.20x = 1,444,492,834,287.36
  5. Step 5: Solve for x
    x = 1,444,492,834,287.36/981,323.20
  6. Step 6: Final answer
    x = 1,471,984.80

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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.