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Finding the Fourth Proportional to 526,920.68, 790,383.04 and 127,560.80

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Solution

The fourth proportional to 526,920.68, 790,383.04 and 127,560.80 is: 191,341.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,920.68 : 790,383.04 = 127,560.80 : x
  2. Step 2: Convert to fraction form
    526,920.68/790,383.04 = 127,560.80/x
  3. Step 3: Cross multiply
    526,920.68x = 790,383.04 × 127,560.80
  4. Step 4: Simplify right side
    526,920.68x = 100,821,892,888.83
  5. Step 5: Solve for x
    x = 100,821,892,888.83/526,920.68
  6. Step 6: Final answer
    x = 191,341.69

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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.