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Finding the Fourth Proportional to 352,838.91, 486,908.22 and 207,653.24

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Solution

The fourth proportional to 352,838.91, 486,908.22 and 207,653.24 is: 286,555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,838.91 : 486,908.22 = 207,653.24 : x
  2. Step 2: Convert to fraction form
    352,838.91/486,908.22 = 207,653.24/x
  3. Step 3: Cross multiply
    352,838.91x = 486,908.22 × 207,653.24
  4. Step 4: Simplify right side
    352,838.91x = 101,108,067,031.09
  5. Step 5: Solve for x
    x = 101,108,067,031.09/352,838.91
  6. Step 6: Final answer
    x = 286,555.89

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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.