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Finding the Fourth Proportional to 530,179.80, 795,269.70 and 214,474.20

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Solution

The fourth proportional to 530,179.80, 795,269.70 and 214,474.20 is: 321,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,179.80 : 795,269.70 = 214,474.20 : x
  2. Step 2: Convert to fraction form
    530,179.80/795,269.70 = 214,474.20/x
  3. Step 3: Cross multiply
    530,179.80x = 795,269.70 × 214,474.20
  4. Step 4: Simplify right side
    530,179.80x = 170,564,832,691.74
  5. Step 5: Solve for x
    x = 170,564,832,691.74/530,179.80
  6. Step 6: Final answer
    x = 321,711.30

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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.