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Finding the Fourth Proportional to 653,196.60, 979,794.97 and 203,955.95

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Solution

The fourth proportional to 653,196.60, 979,794.97 and 203,955.95 is: 305,933.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,196.60 : 979,794.97 = 203,955.95 : x
  2. Step 2: Convert to fraction form
    653,196.60/979,794.97 = 203,955.95/x
  3. Step 3: Cross multiply
    653,196.60x = 979,794.97 × 203,955.95
  4. Step 4: Simplify right side
    653,196.60x = 199,835,015,851.17
  5. Step 5: Solve for x
    x = 199,835,015,851.17/653,196.60
  6. Step 6: Final answer
    x = 305,933.95

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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.