Home / 527,039.63-790,556.61-127,680.20

Finding the Fourth Proportional to 527,039.63, 790,556.61 and 127,680.20

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Solution

The fourth proportional to 527,039.63, 790,556.61 and 127,680.20 is: 191,519.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,039.63 : 790,556.61 = 127,680.20 : x
  2. Step 2: Convert to fraction form
    527,039.63/790,556.61 = 127,680.20/x
  3. Step 3: Cross multiply
    527,039.63x = 790,556.61 × 127,680.20
  4. Step 4: Simplify right side
    527,039.63x = 100,938,426,076.12
  5. Step 5: Solve for x
    x = 100,938,426,076.12/527,039.63
  6. Step 6: Final answer
    x = 191,519.61

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Similar ratio
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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.