Home / 643,584.54-965,532.86-194,278.55

Finding the Fourth Proportional to 643,584.54, 965,532.86 and 194,278.55

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Solution

The fourth proportional to 643,584.54, 965,532.86 and 194,278.55 is: 291,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,584.54 : 965,532.86 = 194,278.55 : x
  2. Step 2: Convert to fraction form
    643,584.54/965,532.86 = 194,278.55/x
  3. Step 3: Cross multiply
    643,584.54x = 965,532.86 × 194,278.55
  4. Step 4: Simplify right side
    643,584.54x = 187,582,324,378.76
  5. Step 5: Solve for x
    x = 187,582,324,378.76/643,584.54
  6. Step 6: Final answer
    x = 291,464.93

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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.