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Finding the Fourth Proportional to 543,313.32, 814,785.42 and 188,244.44

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Solution

The fourth proportional to 543,313.32, 814,785.42 and 188,244.44 is: 282,302.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,313.32 : 814,785.42 = 188,244.44 : x
  2. Step 2: Convert to fraction form
    543,313.32/814,785.42 = 188,244.44/x
  3. Step 3: Cross multiply
    543,313.32x = 814,785.42 × 188,244.44
  4. Step 4: Simplify right side
    543,313.32x = 153,378,825,108.07
  5. Step 5: Solve for x
    x = 153,378,825,108.07/543,313.32
  6. Step 6: Final answer
    x = 282,302.71

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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.