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Finding the Fourth Proportional to 592,810.20, 889,215.30 and 394,435.80

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Solution

The fourth proportional to 592,810.20, 889,215.30 and 394,435.80 is: 591,653.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,810.20 : 889,215.30 = 394,435.80 : x
  2. Step 2: Convert to fraction form
    592,810.20/889,215.30 = 394,435.80/x
  3. Step 3: Cross multiply
    592,810.20x = 889,215.30 × 394,435.80
  4. Step 4: Simplify right side
    592,810.20x = 350,738,348,227.74
  5. Step 5: Solve for x
    x = 350,738,348,227.74/592,810.20
  6. Step 6: Final answer
    x = 591,653.70

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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.