Home / 813,855.08-1,220,935.71-327,574.41

Finding the Fourth Proportional to 813,855.08, 1,220,935.71 and 327,574.41

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Solution

The fourth proportional to 813,855.08, 1,220,935.71 and 327,574.41 is: 491,423.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,855.08 : 1,220,935.71 = 327,574.41 : x
  2. Step 2: Convert to fraction form
    813,855.08/1,220,935.71 = 327,574.41/x
  3. Step 3: Cross multiply
    813,855.08x = 1,220,935.71 × 327,574.41
  4. Step 4: Simplify right side
    813,855.08x = 399,947,294,851.18
  5. Step 5: Solve for x
    x = 399,947,294,851.18/813,855.08
  6. Step 6: Final answer
    x = 491,423.24

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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.