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Finding the Fourth Proportional to 467,159.80, 699,573.30 and 308,529.40

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Solution

The fourth proportional to 467,159.80, 699,573.30 and 308,529.40 is: 462,023.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,159.80 : 699,573.30 = 308,529.40 : x
  2. Step 2: Convert to fraction form
    467,159.80/699,573.30 = 308,529.40/x
  3. Step 3: Cross multiply
    467,159.80x = 699,573.30 × 308,529.40
  4. Step 4: Simplify right side
    467,159.80x = 215,838,930,505.02
  5. Step 5: Solve for x
    x = 215,838,930,505.02/467,159.80
  6. Step 6: Final answer
    x = 462,023.77

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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.