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Finding the Fourth Proportional to 535,468.88, 738,956.78 and 293,763.80

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Solution

The fourth proportional to 535,468.88, 738,956.78 and 293,763.80 is: 405,399.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,468.88 : 738,956.78 = 293,763.80 : x
  2. Step 2: Convert to fraction form
    535,468.88/738,956.78 = 293,763.80/x
  3. Step 3: Cross multiply
    535,468.88x = 738,956.78 × 293,763.80
  4. Step 4: Simplify right side
    535,468.88x = 217,078,746,564.96
  5. Step 5: Solve for x
    x = 217,078,746,564.96/535,468.88
  6. Step 6: Final answer
    x = 405,399.37

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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.