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Finding the Fourth Proportional to 437,996.13, 656,142.06 and 287,780.01

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Solution

The fourth proportional to 437,996.13, 656,142.06 and 287,780.01 is: 431,110.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,996.13 : 656,142.06 = 287,780.01 : x
  2. Step 2: Convert to fraction form
    437,996.13/656,142.06 = 287,780.01/x
  3. Step 3: Cross multiply
    437,996.13x = 656,142.06 × 287,780.01
  4. Step 4: Simplify right side
    437,996.13x = 188,824,568,588.22
  5. Step 5: Solve for x
    x = 188,824,568,588.22/437,996.13
  6. Step 6: Final answer
    x = 431,110.13

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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.