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Finding the Fourth Proportional to 339,328.20, 508,214.70 and 331,552.20

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Solution

The fourth proportional to 339,328.20, 508,214.70 and 331,552.20 is: 496,568.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,328.20 : 508,214.70 = 331,552.20 : x
  2. Step 2: Convert to fraction form
    339,328.20/508,214.70 = 331,552.20/x
  3. Step 3: Cross multiply
    339,328.20x = 508,214.70 × 331,552.20
  4. Step 4: Simplify right side
    339,328.20x = 168,499,701,857.34
  5. Step 5: Solve for x
    x = 168,499,701,857.34/339,328.20
  6. Step 6: Final answer
    x = 496,568.52

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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.