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Finding the Fourth Proportional to 467,543.45, 644,910.77 and 324,251.21

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Solution

The fourth proportional to 467,543.45, 644,910.77 and 324,251.21 is: 447,259.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,543.45 : 644,910.77 = 324,251.21 : x
  2. Step 2: Convert to fraction form
    467,543.45/644,910.77 = 324,251.21/x
  3. Step 3: Cross multiply
    467,543.45x = 644,910.77 × 324,251.21
  4. Step 4: Simplify right side
    467,543.45x = 209,113,092,668.72
  5. Step 5: Solve for x
    x = 209,113,092,668.72/467,543.45
  6. Step 6: Final answer
    x = 447,259.17

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1.5x scale

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.