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Finding the Fourth Proportional to 375,708.38, 518,479.38 and 224,805.38

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Solution

The fourth proportional to 375,708.38, 518,479.38 and 224,805.38 is: 310,232.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,708.38 : 518,479.38 = 224,805.38 : x
  2. Step 2: Convert to fraction form
    375,708.38/518,479.38 = 224,805.38/x
  3. Step 3: Cross multiply
    375,708.38x = 518,479.38 × 224,805.38
  4. Step 4: Simplify right side
    375,708.38x = 116,556,951,450.67
  5. Step 5: Solve for x
    x = 116,556,951,450.67/375,708.38
  6. Step 6: Final answer
    x = 310,232.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.