Home / 260,822.80-391,234.20-127,788.40

Finding the Fourth Proportional to 260,822.80, 391,234.20 and 127,788.40

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Solution

The fourth proportional to 260,822.80, 391,234.20 and 127,788.40 is: 191,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,822.80 : 391,234.20 = 127,788.40 : x
  2. Step 2: Convert to fraction form
    260,822.80/391,234.20 = 127,788.40/x
  3. Step 3: Cross multiply
    260,822.80x = 391,234.20 × 127,788.40
  4. Step 4: Simplify right side
    260,822.80x = 49,995,192,443.28
  5. Step 5: Solve for x
    x = 49,995,192,443.28/260,822.80
  6. Step 6: Final answer
    x = 191,682.60

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1.5x scale

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.