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Finding the Fourth Proportional to 552,671.43, 762,693.56 and 310,954.47

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Solution

The fourth proportional to 552,671.43, 762,693.56 and 310,954.47 is: 429,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,671.43 : 762,693.56 = 310,954.47 : x
  2. Step 2: Convert to fraction form
    552,671.43/762,693.56 = 310,954.47/x
  3. Step 3: Cross multiply
    552,671.43x = 762,693.56 × 310,954.47
  4. Step 4: Simplify right side
    552,671.43x = 237,162,971,722.21
  5. Step 5: Solve for x
    x = 237,162,971,722.21/552,671.43
  6. Step 6: Final answer
    x = 429,121.10

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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.