Home / 527,879.20-791,811.60-172,904.80

Finding the Fourth Proportional to 527,879.20, 791,811.60 and 172,904.80

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Solution

The fourth proportional to 527,879.20, 791,811.60 and 172,904.80 is: 259,354.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,879.20 : 791,811.60 = 172,904.80 : x
  2. Step 2: Convert to fraction form
    527,879.20/791,811.60 = 172,904.80/x
  3. Step 3: Cross multiply
    527,879.20x = 791,811.60 × 172,904.80
  4. Step 4: Simplify right side
    527,879.20x = 136,908,026,335.68
  5. Step 5: Solve for x
    x = 136,908,026,335.68/527,879.20
  6. Step 6: Final answer
    x = 259,354.84

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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.