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Finding the Fourth Proportional to 591,393.86, 887,133.77 and 212,360.74

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Solution

The fourth proportional to 591,393.86, 887,133.77 and 212,360.74 is: 318,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,393.86 : 887,133.77 = 212,360.74 : x
  2. Step 2: Convert to fraction form
    591,393.86/887,133.77 = 212,360.74/x
  3. Step 3: Cross multiply
    591,393.86x = 887,133.77 × 212,360.74
  4. Step 4: Simplify right side
    591,393.86x = 188,392,381,392.90
  5. Step 5: Solve for x
    x = 188,392,381,392.90/591,393.86
  6. Step 6: Final answer
    x = 318,556.54

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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.