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Finding the Fourth Proportional to 468,198.72, 646,112.16 and 253,342.58

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Solution

The fourth proportional to 468,198.72, 646,112.16 and 253,342.58 is: 349,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,198.72 : 646,112.16 = 253,342.58 : x
  2. Step 2: Convert to fraction form
    468,198.72/646,112.16 = 253,342.58/x
  3. Step 3: Cross multiply
    468,198.72x = 646,112.16 × 253,342.58
  4. Step 4: Simplify right side
    468,198.72x = 163,687,718,353.21
  5. Step 5: Solve for x
    x = 163,687,718,353.21/468,198.72
  6. Step 6: Final answer
    x = 349,611.63

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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.