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Finding the Fourth Proportional to 269,186.70, 403,294.05 and 156,774.90

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Solution

The fourth proportional to 269,186.70, 403,294.05 and 156,774.90 is: 234,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,186.70 : 403,294.05 = 156,774.90 : x
  2. Step 2: Convert to fraction form
    269,186.70/403,294.05 = 156,774.90/x
  3. Step 3: Cross multiply
    269,186.70x = 403,294.05 × 156,774.90
  4. Step 4: Simplify right side
    269,186.70x = 63,226,384,359.35
  5. Step 5: Solve for x
    x = 63,226,384,359.35/269,186.70
  6. Step 6: Final answer
    x = 234,879.30

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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.