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Finding the Fourth Proportional to 635,043.60, 876,357.09 and 348,568.56

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Solution

The fourth proportional to 635,043.60, 876,357.09 and 348,568.56 is: 481,022.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,043.60 : 876,357.09 = 348,568.56 : x
  2. Step 2: Convert to fraction form
    635,043.60/876,357.09 = 348,568.56/x
  3. Step 3: Cross multiply
    635,043.60x = 876,357.09 × 348,568.56
  4. Step 4: Simplify right side
    635,043.60x = 305,470,528,907.09
  5. Step 5: Solve for x
    x = 305,470,528,907.09/635,043.60
  6. Step 6: Final answer
    x = 481,022.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.