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Finding the Fourth Proportional to 1,168,189.74, 1,612,831.68 and 895,734.27

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Solution

The fourth proportional to 1,168,189.74, 1,612,831.68 and 895,734.27 is: 1,236,672.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,189.74 : 1,612,831.68 = 895,734.27 : x
  2. Step 2: Convert to fraction form
    1,168,189.74/1,612,831.68 = 895,734.27/x
  3. Step 3: Cross multiply
    1,168,189.74x = 1,612,831.68 × 895,734.27
  4. Step 4: Simplify right side
    1,168,189.74x = 1,444,668,607,517.67
  5. Step 5: Solve for x
    x = 1,444,668,607,517.67/1,168,189.74
  6. Step 6: Final answer
    x = 1,236,672.91

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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.