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Finding the Fourth Proportional to 1,397,834.92, 2,093,678.92 and 1,155,198.88

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Solution

The fourth proportional to 1,397,834.92, 2,093,678.92 and 1,155,198.88 is: 1,730,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,834.92 : 2,093,678.92 = 1,155,198.88 : x
  2. Step 2: Convert to fraction form
    1,397,834.92/2,093,678.92 = 1,155,198.88/x
  3. Step 3: Cross multiply
    1,397,834.92x = 2,093,678.92 × 1,155,198.88
  4. Step 4: Simplify right side
    1,397,834.92x = 2,418,615,547,524.71
  5. Step 5: Solve for x
    x = 2,418,615,547,524.71/1,397,834.92
  6. Step 6: Final answer
    x = 1,730,258.35

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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.