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Finding the Fourth Proportional to 434,687.05, 652,218.30 and 235,147.91

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Solution

The fourth proportional to 434,687.05, 652,218.30 and 235,147.91 is: 352,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,687.05 : 652,218.30 = 235,147.91 : x
  2. Step 2: Convert to fraction form
    434,687.05/652,218.30 = 235,147.91/x
  3. Step 3: Cross multiply
    434,687.05x = 652,218.30 × 235,147.91
  4. Step 4: Simplify right side
    434,687.05x = 153,367,766,847.66
  5. Step 5: Solve for x
    x = 153,367,766,847.66/434,687.05
  6. Step 6: Final answer
    x = 352,823.41

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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.