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Finding the Fourth Proportional to 452,443, 624,371.34 and 251,239

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Solution

The fourth proportional to 452,443, 624,371.34 and 251,239 is: 346,709.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,443 : 624,371.34 = 251,239 : x
  2. Step 2: Convert to fraction form
    452,443/624,371.34 = 251,239/x
  3. Step 3: Cross multiply
    452,443x = 624,371.34 × 251,239
  4. Step 4: Simplify right side
    452,443x = 156,866,431,090.26
  5. Step 5: Solve for x
    x = 156,866,431,090.26/452,443
  6. Step 6: Final answer
    x = 346,709.82

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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.