Home / 499,358.25-689,116.82-273,003.75

Finding the Fourth Proportional to 499,358.25, 689,116.82 and 273,003.75

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Solution

The fourth proportional to 499,358.25, 689,116.82 and 273,003.75 is: 376,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,358.25 : 689,116.82 = 273,003.75 : x
  2. Step 2: Convert to fraction form
    499,358.25/689,116.82 = 273,003.75/x
  3. Step 3: Cross multiply
    499,358.25x = 689,116.82 × 273,003.75
  4. Step 4: Simplify right side
    499,358.25x = 188,131,474,683.06
  5. Step 5: Solve for x
    x = 188,131,474,683.06/499,358.25
  6. Step 6: Final answer
    x = 376,746.50

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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.