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Finding the Fourth Proportional to 382,360.60, 527,655.90 and 212,584.60

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Solution

The fourth proportional to 382,360.60, 527,655.90 and 212,584.60 is: 293,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,360.60 : 527,655.90 = 212,584.60 : x
  2. Step 2: Convert to fraction form
    382,360.60/527,655.90 = 212,584.60/x
  3. Step 3: Cross multiply
    382,360.60x = 527,655.90 × 212,584.60
  4. Step 4: Simplify right side
    382,360.60x = 112,171,518,439.14
  5. Step 5: Solve for x
    x = 112,171,518,439.14/382,360.60
  6. Step 6: Final answer
    x = 293,365.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.