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Finding the Fourth Proportional to 633,494.97, 948,033.45 and 518,311.58

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Solution

The fourth proportional to 633,494.97, 948,033.45 and 518,311.58 is: 775,660.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,494.97 : 948,033.45 = 518,311.58 : x
  2. Step 2: Convert to fraction form
    633,494.97/948,033.45 = 518,311.58/x
  3. Step 3: Cross multiply
    633,494.97x = 948,033.45 × 518,311.58
  4. Step 4: Simplify right side
    633,494.97x = 491,376,710,622.18
  5. Step 5: Solve for x
    x = 491,376,710,622.18/633,494.97
  6. Step 6: Final answer
    x = 775,660.00

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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.