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Finding the Fourth Proportional to 482,057.88, 664,409.10 and 320,624.28

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Solution

The fourth proportional to 482,057.88, 664,409.10 and 320,624.28 is: 441,908.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,057.88 : 664,409.10 = 320,624.28 : x
  2. Step 2: Convert to fraction form
    482,057.88/664,409.10 = 320,624.28/x
  3. Step 3: Cross multiply
    482,057.88x = 664,409.10 × 320,624.28
  4. Step 4: Simplify right side
    482,057.88x = 213,025,689,312.95
  5. Step 5: Solve for x
    x = 213,025,689,312.95/482,057.88
  6. Step 6: Final answer
    x = 441,908.95

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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.