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Finding the Fourth Proportional to 519,736.40, 779,604.61 and 125,752.40

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Solution

The fourth proportional to 519,736.40, 779,604.61 and 125,752.40 is: 188,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,736.40 : 779,604.61 = 125,752.40 : x
  2. Step 2: Convert to fraction form
    519,736.40/779,604.61 = 125,752.40/x
  3. Step 3: Cross multiply
    519,736.40x = 779,604.61 × 125,752.40
  4. Step 4: Simplify right side
    519,736.40x = 98,037,150,758.56
  5. Step 5: Solve for x
    x = 98,037,150,758.56/519,736.40
  6. Step 6: Final answer
    x = 188,628.60

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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.