Home / 1,981,352.27-2,972,055.74-561,406.97

Finding the Fourth Proportional to 1,981,352.27, 2,972,055.74 and 561,406.97

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Solution

The fourth proportional to 1,981,352.27, 2,972,055.74 and 561,406.97 is: 842,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,352.27 : 2,972,055.74 = 561,406.97 : x
  2. Step 2: Convert to fraction form
    1,981,352.27/2,972,055.74 = 561,406.97/x
  3. Step 3: Cross multiply
    1,981,352.27x = 2,972,055.74 × 561,406.97
  4. Step 4: Simplify right side
    1,981,352.27x = 1,668,532,812,287.61
  5. Step 5: Solve for x
    x = 1,668,532,812,287.61/1,981,352.27
  6. Step 6: Final answer
    x = 842,118.20

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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.