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Finding the Fourth Proportional to 627,720.08, 866,243.50 and 341,247.38

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Solution

The fourth proportional to 627,720.08, 866,243.50 and 341,247.38 is: 470,915.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,720.08 : 866,243.50 = 341,247.38 : x
  2. Step 2: Convert to fraction form
    627,720.08/866,243.50 = 341,247.38/x
  3. Step 3: Cross multiply
    627,720.08x = 866,243.50 × 341,247.38
  4. Step 4: Simplify right side
    627,720.08x = 295,603,319,632.69
  5. Step 5: Solve for x
    x = 295,603,319,632.69/627,720.08
  6. Step 6: Final answer
    x = 470,915.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.