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Finding the Fourth Proportional to 622,081.20, 933,121.80 and 201,658.80

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Solution

The fourth proportional to 622,081.20, 933,121.80 and 201,658.80 is: 302,488.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,081.20 : 933,121.80 = 201,658.80 : x
  2. Step 2: Convert to fraction form
    622,081.20/933,121.80 = 201,658.80/x
  3. Step 3: Cross multiply
    622,081.20x = 933,121.80 × 201,658.80
  4. Step 4: Simplify right side
    622,081.20x = 188,172,222,441.84
  5. Step 5: Solve for x
    x = 188,172,222,441.84/622,081.20
  6. Step 6: Final answer
    x = 302,488.20

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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.