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Finding the Fourth Proportional to 476,695.26, 715,033.62 and 192,378.24

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Solution

The fourth proportional to 476,695.26, 715,033.62 and 192,378.24 is: 288,563.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,695.26 : 715,033.62 = 192,378.24 : x
  2. Step 2: Convert to fraction form
    476,695.26/715,033.62 = 192,378.24/x
  3. Step 3: Cross multiply
    476,695.26x = 715,033.62 × 192,378.24
  4. Step 4: Simplify right side
    476,695.26x = 137,556,909,356.43
  5. Step 5: Solve for x
    x = 137,556,909,356.43/476,695.26
  6. Step 6: Final answer
    x = 288,563.62

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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.