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Finding the Fourth Proportional to 519,732.75, 779,599.14 and 125,748.75

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Solution

The fourth proportional to 519,732.75, 779,599.14 and 125,748.75 is: 188,623.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,732.75 : 779,599.14 = 125,748.75 : x
  2. Step 2: Convert to fraction form
    519,732.75/779,599.14 = 125,748.75/x
  3. Step 3: Cross multiply
    519,732.75x = 779,599.14 × 125,748.75
  4. Step 4: Simplify right side
    519,732.75x = 98,033,617,356.08
  5. Step 5: Solve for x
    x = 98,033,617,356.08/519,732.75
  6. Step 6: Final answer
    x = 188,623.13

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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.