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Finding the Fourth Proportional to 875,604.62, 1,315,273.77 and 824,411.90

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Solution

The fourth proportional to 875,604.62, 1,315,273.77 and 824,411.90 is: 1,238,375.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,604.62 : 1,315,273.77 = 824,411.90 : x
  2. Step 2: Convert to fraction form
    875,604.62/1,315,273.77 = 824,411.90/x
  3. Step 3: Cross multiply
    875,604.62x = 1,315,273.77 × 824,411.90
  4. Step 4: Simplify right side
    875,604.62x = 1,084,327,347,745.86
  5. Step 5: Solve for x
    x = 1,084,327,347,745.86/875,604.62
  6. Step 6: Final answer
    x = 1,238,375.54

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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.