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Finding the Fourth Proportional to 382,051.10, 572,420.55 and 248,862.80

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Solution

The fourth proportional to 382,051.10, 572,420.55 and 248,862.80 is: 372,866.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,051.10 : 572,420.55 = 248,862.80 : x
  2. Step 2: Convert to fraction form
    382,051.10/572,420.55 = 248,862.80/x
  3. Step 3: Cross multiply
    382,051.10x = 572,420.55 × 248,862.80
  4. Step 4: Simplify right side
    382,051.10x = 142,454,180,850.54
  5. Step 5: Solve for x
    x = 142,454,180,850.54/382,051.10
  6. Step 6: Final answer
    x = 372,866.83

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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.