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Finding the Fourth Proportional to 517,432.38, 776,148.78 and 232,790.52

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Solution

The fourth proportional to 517,432.38, 776,148.78 and 232,790.52 is: 349,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,432.38 : 776,148.78 = 232,790.52 : x
  2. Step 2: Convert to fraction form
    517,432.38/776,148.78 = 232,790.52/x
  3. Step 3: Cross multiply
    517,432.38x = 776,148.78 × 232,790.52
  4. Step 4: Simplify right side
    517,432.38x = 180,680,078,093.57
  5. Step 5: Solve for x
    x = 180,680,078,093.57/517,432.38
  6. Step 6: Final answer
    x = 349,185.87

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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.