Home / 813,867.08-1,220,953.70-327,586.41

Finding the Fourth Proportional to 813,867.08, 1,220,953.70 and 327,586.41

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Solution

The fourth proportional to 813,867.08, 1,220,953.70 and 327,586.41 is: 491,441.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,867.08 : 1,220,953.70 = 327,586.41 : x
  2. Step 2: Convert to fraction form
    813,867.08/1,220,953.70 = 327,586.41/x
  3. Step 3: Cross multiply
    813,867.08x = 1,220,953.70 × 327,586.41
  4. Step 4: Simplify right side
    813,867.08x = 399,967,840,178.18
  5. Step 5: Solve for x
    x = 399,967,840,178.18/813,867.08
  6. Step 6: Final answer
    x = 491,441.23

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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.