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Finding the Fourth Proportional to 368,528.52, 550,101.21 and 316,273.80

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Solution

The fourth proportional to 368,528.52, 550,101.21 and 316,273.80 is: 472,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,528.52 : 550,101.21 = 316,273.80 : x
  2. Step 2: Convert to fraction form
    368,528.52/550,101.21 = 316,273.80/x
  3. Step 3: Cross multiply
    368,528.52x = 550,101.21 × 316,273.80
  4. Step 4: Simplify right side
    368,528.52x = 173,982,600,071.30
  5. Step 5: Solve for x
    x = 173,982,600,071.30/368,528.52
  6. Step 6: Final answer
    x = 472,100.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.