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Finding the Fourth Proportional to 366,939.95, 550,409.93 and 331,510.55

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Solution

The fourth proportional to 366,939.95, 550,409.93 and 331,510.55 is: 497,265.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,939.95 : 550,409.93 = 331,510.55 : x
  2. Step 2: Convert to fraction form
    366,939.95/550,409.93 = 331,510.55/x
  3. Step 3: Cross multiply
    366,939.95x = 550,409.93 × 331,510.55
  4. Step 4: Simplify right side
    366,939.95x = 182,466,698,619.76
  5. Step 5: Solve for x
    x = 182,466,698,619.76/366,939.95
  6. Step 6: Final answer
    x = 497,265.83

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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.