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Finding the Fourth Proportional to 1,913,691.66, 2,869,540.83 and 902,542.12

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Solution

The fourth proportional to 1,913,691.66, 2,869,540.83 and 902,542.12 is: 1,353,343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,691.66 : 2,869,540.83 = 902,542.12 : x
  2. Step 2: Convert to fraction form
    1,913,691.66/2,869,540.83 = 902,542.12/x
  3. Step 3: Cross multiply
    1,913,691.66x = 2,869,540.83 × 902,542.12
  4. Step 4: Simplify right side
    1,913,691.66x = 2,589,881,465,031.49
  5. Step 5: Solve for x
    x = 2,589,881,465,031.49/1,913,691.66
  6. Step 6: Final answer
    x = 1,353,343.13

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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.