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Finding the Fourth Proportional to 322,404.20, 482,684.70 and 313,188.20

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Solution

The fourth proportional to 322,404.20, 482,684.70 and 313,188.20 is: 468,887.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,404.20 : 482,684.70 = 313,188.20 : x
  2. Step 2: Convert to fraction form
    322,404.20/482,684.70 = 313,188.20/x
  3. Step 3: Cross multiply
    322,404.20x = 482,684.70 × 313,188.20
  4. Step 4: Simplify right side
    322,404.20x = 151,171,152,360.54
  5. Step 5: Solve for x
    x = 151,171,152,360.54/322,404.20
  6. Step 6: Final answer
    x = 468,887.04

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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.