Home / 320,823.60-442,740.48-177,596.88

Finding the Fourth Proportional to 320,823.60, 442,740.48 and 177,596.88

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Solution

The fourth proportional to 320,823.60, 442,740.48 and 177,596.88 is: 245,085.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,823.60 : 442,740.48 = 177,596.88 : x
  2. Step 2: Convert to fraction form
    320,823.60/442,740.48 = 177,596.88/x
  3. Step 3: Cross multiply
    320,823.60x = 442,740.48 × 177,596.88
  4. Step 4: Simplify right side
    320,823.60x = 78,629,327,897.70
  5. Step 5: Solve for x
    x = 78,629,327,897.70/320,823.60
  6. Step 6: Final answer
    x = 245,085.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.