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Finding the Fourth Proportional to 473,497.20, 653,256.36 and 279,864.36

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Solution

The fourth proportional to 473,497.20, 653,256.36 and 279,864.36 is: 386,112.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,497.20 : 653,256.36 = 279,864.36 : x
  2. Step 2: Convert to fraction form
    473,497.20/653,256.36 = 279,864.36/x
  3. Step 3: Cross multiply
    473,497.20x = 653,256.36 × 279,864.36
  4. Step 4: Simplify right side
    473,497.20x = 182,823,173,107.33
  5. Step 5: Solve for x
    x = 182,823,173,107.33/473,497.20
  6. Step 6: Final answer
    x = 386,112.47

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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.