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Finding the Fourth Proportional to 518,102.70, 777,258.83 and 218,583.93

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Solution

The fourth proportional to 518,102.70, 777,258.83 and 218,583.93 is: 327,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,102.70 : 777,258.83 = 218,583.93 : x
  2. Step 2: Convert to fraction form
    518,102.70/777,258.83 = 218,583.93/x
  3. Step 3: Cross multiply
    518,102.70x = 777,258.83 × 218,583.93
  4. Step 4: Simplify right side
    518,102.70x = 169,896,288,595.68
  5. Step 5: Solve for x
    x = 169,896,288,595.68/518,102.70
  6. Step 6: Final answer
    x = 327,920.10

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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.