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Finding the Fourth Proportional to 352,108.40, 527,579.40 and 299,620.40

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Solution

The fourth proportional to 352,108.40, 527,579.40 and 299,620.40 is: 448,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,108.40 : 527,579.40 = 299,620.40 : x
  2. Step 2: Convert to fraction form
    352,108.40/527,579.40 = 299,620.40/x
  3. Step 3: Cross multiply
    352,108.40x = 527,579.40 × 299,620.40
  4. Step 4: Simplify right side
    352,108.40x = 158,073,550,859.76
  5. Step 5: Solve for x
    x = 158,073,550,859.76/352,108.40
  6. Step 6: Final answer
    x = 448,934.34

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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.