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Finding the Fourth Proportional to 1,912,649, 2,866,820.44 and 834,069.20

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Solution

The fourth proportional to 1,912,649, 2,866,820.44 and 834,069.20 is: 1,250,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,649 : 2,866,820.44 = 834,069.20 : x
  2. Step 2: Convert to fraction form
    1,912,649/2,866,820.44 = 834,069.20/x
  3. Step 3: Cross multiply
    1,912,649x = 2,866,820.44 × 834,069.20
  4. Step 4: Simplify right side
    1,912,649x = 2,391,126,630,934.45
  5. Step 5: Solve for x
    x = 2,391,126,630,934.45/1,912,649
  6. Step 6: Final answer
    x = 1,250,164.89

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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.