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Finding the Fourth Proportional to 536,432.20, 804,648.30 and 162,455.20

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Solution

The fourth proportional to 536,432.20, 804,648.30 and 162,455.20 is: 243,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,432.20 : 804,648.30 = 162,455.20 : x
  2. Step 2: Convert to fraction form
    536,432.20/804,648.30 = 162,455.20/x
  3. Step 3: Cross multiply
    536,432.20x = 804,648.30 × 162,455.20
  4. Step 4: Simplify right side
    536,432.20x = 130,719,300,506.16
  5. Step 5: Solve for x
    x = 130,719,300,506.16/536,432.20
  6. Step 6: Final answer
    x = 243,682.80

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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.