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Finding the Fourth Proportional to 663,244.53, 995,060.58 and 213,955.48

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Solution

The fourth proportional to 663,244.53, 995,060.58 and 213,955.48 is: 320,995.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,244.53 : 995,060.58 = 213,955.48 : x
  2. Step 2: Convert to fraction form
    663,244.53/995,060.58 = 213,955.48/x
  3. Step 3: Cross multiply
    663,244.53x = 995,060.58 × 213,955.48
  4. Step 4: Simplify right side
    663,244.53x = 212,898,664,022.98
  5. Step 5: Solve for x
    x = 212,898,664,022.98/663,244.53
  6. Step 6: Final answer
    x = 320,995.73

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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.