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Finding the Fourth Proportional to 500,887.80, 691,223.63 and 271,451.66

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Solution

The fourth proportional to 500,887.80, 691,223.63 and 271,451.66 is: 374,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,887.80 : 691,223.63 = 271,451.66 : x
  2. Step 2: Convert to fraction form
    500,887.80/691,223.63 = 271,451.66/x
  3. Step 3: Cross multiply
    500,887.80x = 691,223.63 × 271,451.66
  4. Step 4: Simplify right side
    500,887.80x = 187,633,796,981.35
  5. Step 5: Solve for x
    x = 187,633,796,981.35/500,887.80
  6. Step 6: Final answer
    x = 374,602.45

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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.