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Finding the Fourth Proportional to 536,436.20, 804,654.30 and 162,459.20

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Solution

The fourth proportional to 536,436.20, 804,654.30 and 162,459.20 is: 243,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,436.20 : 804,654.30 = 162,459.20 : x
  2. Step 2: Convert to fraction form
    536,436.20/804,654.30 = 162,459.20/x
  3. Step 3: Cross multiply
    536,436.20x = 804,654.30 × 162,459.20
  4. Step 4: Simplify right side
    536,436.20x = 130,723,493,854.56
  5. Step 5: Solve for x
    x = 130,723,493,854.56/536,436.20
  6. Step 6: Final answer
    x = 243,688.80

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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.