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Finding the Fourth Proportional to 1,981,730.14, 2,971,834.58 and 843,770.86

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Solution

The fourth proportional to 1,981,730.14, 2,971,834.58 and 843,770.86 is: 1,265,332.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,730.14 : 2,971,834.58 = 843,770.86 : x
  2. Step 2: Convert to fraction form
    1,981,730.14/2,971,834.58 = 843,770.86/x
  3. Step 3: Cross multiply
    1,981,730.14x = 2,971,834.58 × 843,770.86
  4. Step 4: Simplify right side
    1,981,730.14x = 2,507,547,419,344.34
  5. Step 5: Solve for x
    x = 2,507,547,419,344.34/1,981,730.14
  6. Step 6: Final answer
    x = 1,265,332.43

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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.