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Finding the Fourth Proportional to 519,732.88, 779,599.34 and 125,748.88

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Solution

The fourth proportional to 519,732.88, 779,599.34 and 125,748.88 is: 188,623.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,732.88 : 779,599.34 = 125,748.88 : x
  2. Step 2: Convert to fraction form
    519,732.88/779,599.34 = 125,748.88/x
  3. Step 3: Cross multiply
    519,732.88x = 779,599.34 × 125,748.88
  4. Step 4: Simplify right side
    519,732.88x = 98,033,743,853.74
  5. Step 5: Solve for x
    x = 98,033,743,853.74/519,732.88
  6. Step 6: Final answer
    x = 188,623.32

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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.