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Finding the Fourth Proportional to 543,207.42, 814,626.57 and 188,138.46

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Solution

The fourth proportional to 543,207.42, 814,626.57 and 188,138.46 is: 282,143.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,207.42 : 814,626.57 = 188,138.46 : x
  2. Step 2: Convert to fraction form
    543,207.42/814,626.57 = 188,138.46/x
  3. Step 3: Cross multiply
    543,207.42x = 814,626.57 × 188,138.46
  4. Step 4: Simplify right side
    543,207.42x = 153,262,588,354.88
  5. Step 5: Solve for x
    x = 153,262,588,354.88/543,207.42
  6. Step 6: Final answer
    x = 282,143.77

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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.