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Finding the Fourth Proportional to 668,236.50, 922,166.55 and 366,436.98

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Solution

The fourth proportional to 668,236.50, 922,166.55 and 366,436.98 is: 505,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,236.50 : 922,166.55 = 366,436.98 : x
  2. Step 2: Convert to fraction form
    668,236.50/922,166.55 = 366,436.98/x
  3. Step 3: Cross multiply
    668,236.50x = 922,166.55 × 366,436.98
  4. Step 4: Simplify right side
    668,236.50x = 337,915,925,639.02
  5. Step 5: Solve for x
    x = 337,915,925,639.02/668,236.50
  6. Step 6: Final answer
    x = 505,683.13

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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.