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Finding the Fourth Proportional to 519,352.32, 779,028.48 and 125,368.32

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Solution

The fourth proportional to 519,352.32, 779,028.48 and 125,368.32 is: 188,052.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,352.32 : 779,028.48 = 125,368.32 : x
  2. Step 2: Convert to fraction form
    519,352.32/779,028.48 = 125,368.32/x
  3. Step 3: Cross multiply
    519,352.32x = 779,028.48 × 125,368.32
  4. Step 4: Simplify right side
    519,352.32x = 97,665,491,769.75
  5. Step 5: Solve for x
    x = 97,665,491,769.75/519,352.32
  6. Step 6: Final answer
    x = 188,052.48

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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.