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Finding the Fourth Proportional to 282,685.40, 424,028.10 and 251,192.60

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Solution

The fourth proportional to 282,685.40, 424,028.10 and 251,192.60 is: 376,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,685.40 : 424,028.10 = 251,192.60 : x
  2. Step 2: Convert to fraction form
    282,685.40/424,028.10 = 251,192.60/x
  3. Step 3: Cross multiply
    282,685.40x = 424,028.10 × 251,192.60
  4. Step 4: Simplify right side
    282,685.40x = 106,512,720,912.06
  5. Step 5: Solve for x
    x = 106,512,720,912.06/282,685.40
  6. Step 6: Final answer
    x = 376,788.90

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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.