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Finding the Fourth Proportional to 515,352.60, 773,258.58 and 199,833.84

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Solution

The fourth proportional to 515,352.60, 773,258.58 and 199,833.84 is: 299,839.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,352.60 : 773,258.58 = 199,833.84 : x
  2. Step 2: Convert to fraction form
    515,352.60/773,258.58 = 199,833.84/x
  3. Step 3: Cross multiply
    515,352.60x = 773,258.58 × 199,833.84
  4. Step 4: Simplify right side
    515,352.60x = 154,523,231,354.35
  5. Step 5: Solve for x
    x = 154,523,231,354.35/515,352.60
  6. Step 6: Final answer
    x = 299,839.82

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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.