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Finding the Fourth Proportional to 552,573.85, 762,272.78 and 322,981.13

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Solution

The fourth proportional to 552,573.85, 762,272.78 and 322,981.13 is: 445,550.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,573.85 : 762,272.78 = 322,981.13 : x
  2. Step 2: Convert to fraction form
    552,573.85/762,272.78 = 322,981.13/x
  3. Step 3: Cross multiply
    552,573.85x = 762,272.78 × 322,981.13
  4. Step 4: Simplify right side
    552,573.85x = 246,199,725,505.99
  5. Step 5: Solve for x
    x = 246,199,725,505.99/552,573.85
  6. Step 6: Final answer
    x = 445,550.81

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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.