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Finding the Fourth Proportional to 356,584.90, 492,022.65 and 229,231.30

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Solution

The fourth proportional to 356,584.90, 492,022.65 and 229,231.30 is: 316,297.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,584.90 : 492,022.65 = 229,231.30 : x
  2. Step 2: Convert to fraction form
    356,584.90/492,022.65 = 229,231.30/x
  3. Step 3: Cross multiply
    356,584.90x = 492,022.65 × 229,231.30
  4. Step 4: Simplify right side
    356,584.90x = 112,786,991,688.95
  5. Step 5: Solve for x
    x = 112,786,991,688.95/356,584.90
  6. Step 6: Final answer
    x = 316,297.72

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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.