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Finding the Fourth Proportional to 3,919,360.64, 5,876,752.77 and 1,520,402.04

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Solution

The fourth proportional to 3,919,360.64, 5,876,752.77 and 1,520,402.04 is: 2,279,715.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,919,360.64 : 5,876,752.77 = 1,520,402.04 : x
  2. Step 2: Convert to fraction form
    3,919,360.64/5,876,752.77 = 1,520,402.04/x
  3. Step 3: Cross multiply
    3,919,360.64x = 5,876,752.77 × 1,520,402.04
  4. Step 4: Simplify right side
    3,919,360.64x = 8,935,026,900,083.65
  5. Step 5: Solve for x
    x = 8,935,026,900,083.65/3,919,360.64
  6. Step 6: Final answer
    x = 2,279,715.43

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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.