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Finding the Fourth Proportional to 352,856.80, 532,206.70 and 329,528.80

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Solution

The fourth proportional to 352,856.80, 532,206.70 and 329,528.80 is: 497,021.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,856.80 : 532,206.70 = 329,528.80 : x
  2. Step 2: Convert to fraction form
    352,856.80/532,206.70 = 329,528.80/x
  3. Step 3: Cross multiply
    352,856.80x = 532,206.70 × 329,528.80
  4. Step 4: Simplify right side
    352,856.80x = 175,377,435,202.96
  5. Step 5: Solve for x
    x = 175,377,435,202.96/352,856.80
  6. Step 6: Final answer
    x = 497,021.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.