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Finding the Fourth Proportional to 1,793,946.12, 2,687,874.12 and 1,082,479.20

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Solution

The fourth proportional to 1,793,946.12, 2,687,874.12 and 1,082,479.20 is: 1,621,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,793,946.12 : 2,687,874.12 = 1,082,479.20 : x
  2. Step 2: Convert to fraction form
    1,793,946.12/2,687,874.12 = 1,082,479.20/x
  3. Step 3: Cross multiply
    1,793,946.12x = 2,687,874.12 × 1,082,479.20
  4. Step 4: Simplify right side
    1,793,946.12x = 2,909,567,827,118.30
  5. Step 5: Solve for x
    x = 2,909,567,827,118.30/1,793,946.12
  6. Step 6: Final answer
    x = 1,621,881.39

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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.