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Finding the Fourth Proportional to 668,371.35, 922,410.78 and 366,623.67

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Solution

The fourth proportional to 668,371.35, 922,410.78 and 366,623.67 is: 505,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,371.35 : 922,410.78 = 366,623.67 : x
  2. Step 2: Convert to fraction form
    668,371.35/922,410.78 = 366,623.67/x
  3. Step 3: Cross multiply
    668,371.35x = 922,410.78 × 366,623.67
  4. Step 4: Simplify right side
    668,371.35x = 338,177,625,411.16
  5. Step 5: Solve for x
    x = 338,177,625,411.16/668,371.35
  6. Step 6: Final answer
    x = 505,972.65

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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.