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Finding the Fourth Proportional to 328,234.60, 492,351.90 and 141,246.10

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Solution

The fourth proportional to 328,234.60, 492,351.90 and 141,246.10 is: 211,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,234.60 : 492,351.90 = 141,246.10 : x
  2. Step 2: Convert to fraction form
    328,234.60/492,351.90 = 141,246.10/x
  3. Step 3: Cross multiply
    328,234.60x = 492,351.90 × 141,246.10
  4. Step 4: Simplify right side
    328,234.60x = 69,542,785,702.59
  5. Step 5: Solve for x
    x = 69,542,785,702.59/328,234.60
  6. Step 6: Final answer
    x = 211,869.15

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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.