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Finding the Fourth Proportional to 577,859.40, 866,529.90 and 222,755.40

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Solution

The fourth proportional to 577,859.40, 866,529.90 and 222,755.40 is: 334,033.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,859.40 : 866,529.90 = 222,755.40 : x
  2. Step 2: Convert to fraction form
    577,859.40/866,529.90 = 222,755.40/x
  3. Step 3: Cross multiply
    577,859.40x = 866,529.90 × 222,755.40
  4. Step 4: Simplify right side
    577,859.40x = 193,024,214,486.46
  5. Step 5: Solve for x
    x = 193,024,214,486.46/577,859.40
  6. Step 6: Final answer
    x = 334,033.18

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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.