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Finding the Fourth Proportional to 481,233.76, 721,374.48 and 228,069.28

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Solution

The fourth proportional to 481,233.76, 721,374.48 and 228,069.28 is: 341,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,233.76 : 721,374.48 = 228,069.28 : x
  2. Step 2: Convert to fraction form
    481,233.76/721,374.48 = 228,069.28/x
  3. Step 3: Cross multiply
    481,233.76x = 721,374.48 × 228,069.28
  4. Step 4: Simplify right side
    481,233.76x = 164,523,358,263.97
  5. Step 5: Solve for x
    x = 164,523,358,263.97/481,233.76
  6. Step 6: Final answer
    x = 341,878.26

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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.