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Finding the Fourth Proportional to 275,636.10, 413,466.30 and 155,691.30

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Solution

The fourth proportional to 275,636.10, 413,466.30 and 155,691.30 is: 233,543.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,636.10 : 413,466.30 = 155,691.30 : x
  2. Step 2: Convert to fraction form
    275,636.10/413,466.30 = 155,691.30/x
  3. Step 3: Cross multiply
    275,636.10x = 413,466.30 × 155,691.30
  4. Step 4: Simplify right side
    275,636.10x = 64,373,105,753.19
  5. Step 5: Solve for x
    x = 64,373,105,753.19/275,636.10
  6. Step 6: Final answer
    x = 233,543.81

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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.