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Finding the Fourth Proportional to 498,934.39, 748,874.74 and 308,819.68

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Solution

The fourth proportional to 498,934.39, 748,874.74 and 308,819.68 is: 463,522.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,934.39 : 748,874.74 = 308,819.68 : x
  2. Step 2: Convert to fraction form
    498,934.39/748,874.74 = 308,819.68/x
  3. Step 3: Cross multiply
    498,934.39x = 748,874.74 × 308,819.68
  4. Step 4: Simplify right side
    498,934.39x = 231,267,257,566.88
  5. Step 5: Solve for x
    x = 231,267,257,566.88/498,934.39
  6. Step 6: Final answer
    x = 463,522.38

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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.