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Finding the Fourth Proportional to 500,797.59, 691,097.17 and 274,438.23

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Solution

The fourth proportional to 500,797.59, 691,097.17 and 274,438.23 is: 378,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,797.59 : 691,097.17 = 274,438.23 : x
  2. Step 2: Convert to fraction form
    500,797.59/691,097.17 = 274,438.23/x
  3. Step 3: Cross multiply
    500,797.59x = 691,097.17 × 274,438.23
  4. Step 4: Simplify right side
    500,797.59x = 189,663,484,092.81
  5. Step 5: Solve for x
    x = 189,663,484,092.81/500,797.59
  6. Step 6: Final answer
    x = 378,722.84

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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.