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Finding the Fourth Proportional to 556,640.20, 834,911.70 and 182,663.20

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Solution

The fourth proportional to 556,640.20, 834,911.70 and 182,663.20 is: 273,978.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,640.20 : 834,911.70 = 182,663.20 : x
  2. Step 2: Convert to fraction form
    556,640.20/834,911.70 = 182,663.20/x
  3. Step 3: Cross multiply
    556,640.20x = 834,911.70 × 182,663.20
  4. Step 4: Simplify right side
    556,640.20x = 152,507,642,839.44
  5. Step 5: Solve for x
    x = 152,507,642,839.44/556,640.20
  6. Step 6: Final answer
    x = 273,978.85

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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.