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Finding the Fourth Proportional to 1,867,901.41, 2,798,473.15 and 857,868.27

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Solution

The fourth proportional to 1,867,901.41, 2,798,473.15 and 857,868.27 is: 1,285,250.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,867,901.41 : 2,798,473.15 = 857,868.27 : x
  2. Step 2: Convert to fraction form
    1,867,901.41/2,798,473.15 = 857,868.27/x
  3. Step 3: Cross multiply
    1,867,901.41x = 2,798,473.15 × 857,868.27
  4. Step 4: Simplify right side
    1,867,901.41x = 2,400,721,310,410.01
  5. Step 5: Solve for x
    x = 2,400,721,310,410.01/1,867,901.41
  6. Step 6: Final answer
    x = 1,285,250.55

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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.