Home / 817,778.23-1,227,192.22-396,824.47

Finding the Fourth Proportional to 817,778.23, 1,227,192.22 and 396,824.47

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Solution

The fourth proportional to 817,778.23, 1,227,192.22 and 396,824.47 is: 595,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,778.23 : 1,227,192.22 = 396,824.47 : x
  2. Step 2: Convert to fraction form
    817,778.23/1,227,192.22 = 396,824.47/x
  3. Step 3: Cross multiply
    817,778.23x = 1,227,192.22 × 396,824.47
  4. Step 4: Simplify right side
    817,778.23x = 486,979,899,717.67
  5. Step 5: Solve for x
    x = 486,979,899,717.67/817,778.23
  6. Step 6: Final answer
    x = 595,491.40

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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.