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Finding the Fourth Proportional to 1,835,874.86, 2,532,692.21 and 1,223,431.02

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Solution

The fourth proportional to 1,835,874.86, 2,532,692.21 and 1,223,431.02 is: 1,687,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835,874.86 : 2,532,692.21 = 1,223,431.02 : x
  2. Step 2: Convert to fraction form
    1,835,874.86/2,532,692.21 = 1,223,431.02/x
  3. Step 3: Cross multiply
    1,835,874.86x = 2,532,692.21 × 1,223,431.02
  4. Step 4: Simplify right side
    1,835,874.86x = 3,098,574,207,709.20
  5. Step 5: Solve for x
    x = 3,098,574,207,709.20/1,835,874.86
  6. Step 6: Final answer
    x = 1,687,791.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.