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Finding the Fourth Proportional to 404,560.12, 606,629.02 and 120,211.50

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Solution

The fourth proportional to 404,560.12, 606,629.02 and 120,211.50 is: 180,254.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,560.12 : 606,629.02 = 120,211.50 : x
  2. Step 2: Convert to fraction form
    404,560.12/606,629.02 = 120,211.50/x
  3. Step 3: Cross multiply
    404,560.12x = 606,629.02 × 120,211.50
  4. Step 4: Simplify right side
    404,560.12x = 72,923,784,437.73
  5. Step 5: Solve for x
    x = 72,923,784,437.73/404,560.12
  6. Step 6: Final answer
    x = 180,254.51

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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.