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Finding the Fourth Proportional to 526,993.09, 790,491.51 and 127,634.13

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Solution

The fourth proportional to 526,993.09, 790,491.51 and 127,634.13 is: 191,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,993.09 : 790,491.51 = 127,634.13 : x
  2. Step 2: Convert to fraction form
    526,993.09/790,491.51 = 127,634.13/x
  3. Step 3: Cross multiply
    526,993.09x = 790,491.51 × 127,634.13
  4. Step 4: Simplify right side
    526,993.09x = 100,893,699,115.58
  5. Step 5: Solve for x
    x = 100,893,699,115.58/526,993.09
  6. Step 6: Final answer
    x = 191,451.65

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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.