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Finding the Fourth Proportional to 235,438.51, 350,939.85 and 216,542.83

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Solution

The fourth proportional to 235,438.51, 350,939.85 and 216,542.83 is: 322,774.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,438.51 : 350,939.85 = 216,542.83 : x
  2. Step 2: Convert to fraction form
    235,438.51/350,939.85 = 216,542.83/x
  3. Step 3: Cross multiply
    235,438.51x = 350,939.85 × 216,542.83
  4. Step 4: Simplify right side
    235,438.51x = 75,993,505,441.36
  5. Step 5: Solve for x
    x = 75,993,505,441.36/235,438.51
  6. Step 6: Final answer
    x = 322,774.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.