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Finding the Fourth Proportional to 522,647.24, 783,969.32 and 143,568.36

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Solution

The fourth proportional to 522,647.24, 783,969.32 and 143,568.36 is: 215,352.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,647.24 : 783,969.32 = 143,568.36 : x
  2. Step 2: Convert to fraction form
    522,647.24/783,969.32 = 143,568.36/x
  3. Step 3: Cross multiply
    522,647.24x = 783,969.32 × 143,568.36
  4. Step 4: Simplify right side
    522,647.24x = 112,553,192,861.52
  5. Step 5: Solve for x
    x = 112,553,192,861.52/522,647.24
  6. Step 6: Final answer
    x = 215,352.12

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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.