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Finding the Fourth Proportional to 215,804.71, 297,716.00 and 205,799.18

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Solution

The fourth proportional to 215,804.71, 297,716.00 and 205,799.18 is: 283,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,804.71 : 297,716.00 = 205,799.18 : x
  2. Step 2: Convert to fraction form
    215,804.71/297,716.00 = 205,799.18/x
  3. Step 3: Cross multiply
    215,804.71x = 297,716.00 × 205,799.18
  4. Step 4: Simplify right side
    215,804.71x = 61,269,707,643.88
  5. Step 5: Solve for x
    x = 61,269,707,643.88/215,804.71
  6. Step 6: Final answer
    x = 283,912.75

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1.5x scale

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.