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Finding the Fourth Proportional to 366,938.10, 550,407.15 and 254,963.70

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Solution

The fourth proportional to 366,938.10, 550,407.15 and 254,963.70 is: 382,445.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,938.10 : 550,407.15 = 254,963.70 : x
  2. Step 2: Convert to fraction form
    366,938.10/550,407.15 = 254,963.70/x
  3. Step 3: Cross multiply
    366,938.10x = 550,407.15 × 254,963.70
  4. Step 4: Simplify right side
    366,938.10x = 140,333,843,470.46
  5. Step 5: Solve for x
    x = 140,333,843,470.46/366,938.10
  6. Step 6: Final answer
    x = 382,445.55

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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.