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Finding the Fourth Proportional to 454,328.99, 626,978.29 and 250,387.26

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Solution

The fourth proportional to 454,328.99, 626,978.29 and 250,387.26 is: 345,536.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,328.99 : 626,978.29 = 250,387.26 : x
  2. Step 2: Convert to fraction form
    454,328.99/626,978.29 = 250,387.26/x
  3. Step 3: Cross multiply
    454,328.99x = 626,978.29 × 250,387.26
  4. Step 4: Simplify right side
    454,328.99x = 156,987,376,112.59
  5. Step 5: Solve for x
    x = 156,987,376,112.59/454,328.99
  6. Step 6: Final answer
    x = 345,536.78

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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.