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Finding the Fourth Proportional to 797,698.56, 1,195,550 and 398,450.76

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Solution

The fourth proportional to 797,698.56, 1,195,550 and 398,450.76 is: 597,177.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    797,698.56 : 1,195,550 = 398,450.76 : x
  2. Step 2: Convert to fraction form
    797,698.56/1,195,550 = 398,450.76/x
  3. Step 3: Cross multiply
    797,698.56x = 1,195,550 × 398,450.76
  4. Step 4: Simplify right side
    797,698.56x = 476,367,806,118
  5. Step 5: Solve for x
    x = 476,367,806,118/797,698.56
  6. Step 6: Final answer
    x = 597,177.72

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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.