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Finding the Fourth Proportional to 366,986.80, 550,480.20 and 317,123.20

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Solution

The fourth proportional to 366,986.80, 550,480.20 and 317,123.20 is: 475,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,986.80 : 550,480.20 = 317,123.20 : x
  2. Step 2: Convert to fraction form
    366,986.80/550,480.20 = 317,123.20/x
  3. Step 3: Cross multiply
    366,986.80x = 550,480.20 × 317,123.20
  4. Step 4: Simplify right side
    366,986.80x = 174,570,042,560.64
  5. Step 5: Solve for x
    x = 174,570,042,560.64/366,986.80
  6. Step 6: Final answer
    x = 475,684.80

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1.5x scale

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.