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Finding the Fourth Proportional to 217,230.30, 325,845.45 and 190,964.70

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Solution

The fourth proportional to 217,230.30, 325,845.45 and 190,964.70 is: 286,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,230.30 : 325,845.45 = 190,964.70 : x
  2. Step 2: Convert to fraction form
    217,230.30/325,845.45 = 190,964.70/x
  3. Step 3: Cross multiply
    217,230.30x = 325,845.45 × 190,964.70
  4. Step 4: Simplify right side
    217,230.30x = 62,224,978,605.62
  5. Step 5: Solve for x
    x = 62,224,978,605.62/217,230.30
  6. Step 6: Final answer
    x = 286,447.05

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1.5x scale

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.