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Finding the Fourth Proportional to 605,954.92, 835,870.98 and 379,206.76

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Solution

The fourth proportional to 605,954.92, 835,870.98 and 379,206.76 is: 523,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,954.92 : 835,870.98 = 379,206.76 : x
  2. Step 2: Convert to fraction form
    605,954.92/835,870.98 = 379,206.76/x
  3. Step 3: Cross multiply
    605,954.92x = 835,870.98 × 379,206.76
  4. Step 4: Simplify right side
    605,954.92x = 316,967,926,103.83
  5. Step 5: Solve for x
    x = 316,967,926,103.83/605,954.92
  6. Step 6: Final answer
    x = 523,088.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.