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Finding the Fourth Proportional to 519,750.75, 779,626.14 and 125,766.75

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Solution

The fourth proportional to 519,750.75, 779,626.14 and 125,766.75 is: 188,650.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,750.75 : 779,626.14 = 125,766.75 : x
  2. Step 2: Convert to fraction form
    519,750.75/779,626.14 = 125,766.75/x
  3. Step 3: Cross multiply
    519,750.75x = 779,626.14 × 125,766.75
  4. Step 4: Simplify right side
    519,750.75x = 98,051,045,842.85
  5. Step 5: Solve for x
    x = 98,051,045,842.85/519,750.75
  6. Step 6: Final answer
    x = 188,650.13

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Double scale
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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.