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Finding the Fourth Proportional to 668,762.88, 922,890.24 and 366,961.92

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Solution

The fourth proportional to 668,762.88, 922,890.24 and 366,961.92 is: 506,406.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,762.88 : 922,890.24 = 366,961.92 : x
  2. Step 2: Convert to fraction form
    668,762.88/922,890.24 = 366,961.92/x
  3. Step 3: Cross multiply
    668,762.88x = 922,890.24 × 366,961.92
  4. Step 4: Simplify right side
    668,762.88x = 338,665,574,419.66
  5. Step 5: Solve for x
    x = 338,665,574,419.66/668,762.88
  6. Step 6: Final answer
    x = 506,406.06

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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.