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Finding the Fourth Proportional to 543,270.90, 814,407.44 and 188,036.49

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Solution

The fourth proportional to 543,270.90, 814,407.44 and 188,036.49 is: 281,882.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,270.90 : 814,407.44 = 188,036.49 : x
  2. Step 2: Convert to fraction form
    543,270.90/814,407.44 = 188,036.49/x
  3. Step 3: Cross multiply
    543,270.90x = 814,407.44 × 188,036.49
  4. Step 4: Simplify right side
    543,270.90x = 153,138,314,509.14
  5. Step 5: Solve for x
    x = 153,138,314,509.14/543,270.90
  6. Step 6: Final answer
    x = 281,882.05

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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.