Home / 1,011,831.60-1,396,470.05-644,191.33

Finding the Fourth Proportional to 1,011,831.60, 1,396,470.05 and 644,191.33

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Solution

The fourth proportional to 1,011,831.60, 1,396,470.05 and 644,191.33 is: 889,074.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,831.60 : 1,396,470.05 = 644,191.33 : x
  2. Step 2: Convert to fraction form
    1,011,831.60/1,396,470.05 = 644,191.33/x
  3. Step 3: Cross multiply
    1,011,831.60x = 1,396,470.05 × 644,191.33
  4. Step 4: Simplify right side
    1,011,831.60x = 899,593,895,324.85
  5. Step 5: Solve for x
    x = 899,593,895,324.85/1,011,831.60
  6. Step 6: Final answer
    x = 889,074.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.