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Finding the Fourth Proportional to 519,812.08, 779,717.59 and 195,660.71

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Solution

The fourth proportional to 519,812.08, 779,717.59 and 195,660.71 is: 293,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,812.08 : 779,717.59 = 195,660.71 : x
  2. Step 2: Convert to fraction form
    519,812.08/779,717.59 = 195,660.71/x
  3. Step 3: Cross multiply
    519,812.08x = 779,717.59 × 195,660.71
  4. Step 4: Simplify right side
    519,812.08x = 152,560,097,258.89
  5. Step 5: Solve for x
    x = 152,560,097,258.89/519,812.08
  6. Step 6: Final answer
    x = 293,490.87

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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.