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Finding the Fourth Proportional to 366,830.40, 550,245.60 and 317,622.90

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Solution

The fourth proportional to 366,830.40, 550,245.60 and 317,622.90 is: 476,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,830.40 : 550,245.60 = 317,622.90 : x
  2. Step 2: Convert to fraction form
    366,830.40/550,245.60 = 317,622.90/x
  3. Step 3: Cross multiply
    366,830.40x = 550,245.60 × 317,622.90
  4. Step 4: Simplify right side
    366,830.40x = 174,770,603,184.24
  5. Step 5: Solve for x
    x = 174,770,603,184.24/366,830.40
  6. Step 6: Final answer
    x = 476,434.35

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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.