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Finding the Fourth Proportional to 322,880.10, 445,524.20 and 186,887.44

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Solution

The fourth proportional to 322,880.10, 445,524.20 and 186,887.44 is: 257,875.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,880.10 : 445,524.20 = 186,887.44 : x
  2. Step 2: Convert to fraction form
    322,880.10/445,524.20 = 186,887.44/x
  3. Step 3: Cross multiply
    322,880.10x = 445,524.20 × 186,887.44
  4. Step 4: Simplify right side
    322,880.10x = 83,262,876,261.61
  5. Step 5: Solve for x
    x = 83,262,876,261.61/322,880.10
  6. Step 6: Final answer
    x = 257,875.53

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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.