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Finding the Fourth Proportional to 367,640.90, 513,647.50 and 367,640.90

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Solution

The fourth proportional to 367,640.90, 513,647.50 and 367,640.90 is: 513,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,640.90 : 513,647.50 = 367,640.90 : x
  2. Step 2: Convert to fraction form
    367,640.90/513,647.50 = 367,640.90/x
  3. Step 3: Cross multiply
    367,640.90x = 513,647.50 × 367,640.90
  4. Step 4: Simplify right side
    367,640.90x = 188,837,829,182.75
  5. Step 5: Solve for x
    x = 188,837,829,182.75/367,640.90
  6. Step 6: Final answer
    x = 513,647.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.