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Finding the Fourth Proportional to 513,856.98, 770,785.47 and 158,863.14

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Solution

The fourth proportional to 513,856.98, 770,785.47 and 158,863.14 is: 238,294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,856.98 : 770,785.47 = 158,863.14 : x
  2. Step 2: Convert to fraction form
    513,856.98/770,785.47 = 158,863.14/x
  3. Step 3: Cross multiply
    513,856.98x = 770,785.47 × 158,863.14
  4. Step 4: Simplify right side
    513,856.98x = 122,449,400,030.58
  5. Step 5: Solve for x
    x = 122,449,400,030.58/513,856.98
  6. Step 6: Final answer
    x = 238,294.71

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Double scale
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Similar ratio
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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.