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Finding the Fourth Proportional to 526,763.30, 790,145.33 and 127,404.46

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Solution

The fourth proportional to 526,763.30, 790,145.33 and 127,404.46 is: 191,106.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,763.30 : 790,145.33 = 127,404.46 : x
  2. Step 2: Convert to fraction form
    526,763.30/790,145.33 = 127,404.46/x
  3. Step 3: Cross multiply
    526,763.30x = 790,145.33 × 127,404.46
  4. Step 4: Simplify right side
    526,763.30x = 100,668,037,433.32
  5. Step 5: Solve for x
    x = 100,668,037,433.32/526,763.30
  6. Step 6: Final answer
    x = 191,106.78

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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.