Home / 500,812.25-691,360.23-285,910.74

Finding the Fourth Proportional to 500,812.25, 691,360.23 and 285,910.74

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Solution

The fourth proportional to 500,812.25, 691,360.23 and 285,910.74 is: 394,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,812.25 : 691,360.23 = 285,910.74 : x
  2. Step 2: Convert to fraction form
    500,812.25/691,360.23 = 285,910.74/x
  3. Step 3: Cross multiply
    500,812.25x = 691,360.23 × 285,910.74
  4. Step 4: Simplify right side
    500,812.25x = 197,667,314,965.87
  5. Step 5: Solve for x
    x = 197,667,314,965.87/500,812.25
  6. Step 6: Final answer
    x = 394,693.45

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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.