Home / 817,882.41-1,227,073.85-418,805.55

Finding the Fourth Proportional to 817,882.41, 1,227,073.85 and 418,805.55

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Solution

The fourth proportional to 817,882.41, 1,227,073.85 and 418,805.55 is: 628,336.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,882.41 : 1,227,073.85 = 418,805.55 : x
  2. Step 2: Convert to fraction form
    817,882.41/1,227,073.85 = 418,805.55/x
  3. Step 3: Cross multiply
    817,882.41x = 1,227,073.85 × 418,805.55
  4. Step 4: Simplify right side
    817,882.41x = 513,905,336,545.84
  5. Step 5: Solve for x
    x = 513,905,336,545.84/817,882.41
  6. Step 6: Final answer
    x = 628,336.46

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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.