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Finding the Fourth Proportional to 531,719.62, 797,074.62 and 212,067.70

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Solution

The fourth proportional to 531,719.62, 797,074.62 and 212,067.70 is: 317,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,719.62 : 797,074.62 = 212,067.70 : x
  2. Step 2: Convert to fraction form
    531,719.62/797,074.62 = 212,067.70/x
  3. Step 3: Cross multiply
    531,719.62x = 797,074.62 × 212,067.70
  4. Step 4: Simplify right side
    531,719.62x = 169,033,781,391.77
  5. Step 5: Solve for x
    x = 169,033,781,391.77/531,719.62
  6. Step 6: Final answer
    x = 317,900.21

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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.