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Finding the Fourth Proportional to 366,941.80, 550,412.70 and 317,078.20

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Solution

The fourth proportional to 366,941.80, 550,412.70 and 317,078.20 is: 475,617.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,941.80 : 550,412.70 = 317,078.20 : x
  2. Step 2: Convert to fraction form
    366,941.80/550,412.70 = 317,078.20/x
  3. Step 3: Cross multiply
    366,941.80x = 550,412.70 × 317,078.20
  4. Step 4: Simplify right side
    366,941.80x = 174,523,868,173.14
  5. Step 5: Solve for x
    x = 174,523,868,173.14/366,941.80
  6. Step 6: Final answer
    x = 475,617.30

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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.