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Finding the Fourth Proportional to 508,568.61, 701,833.59 and 279,147.36

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Solution

The fourth proportional to 508,568.61, 701,833.59 and 279,147.36 is: 385,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,568.61 : 701,833.59 = 279,147.36 : x
  2. Step 2: Convert to fraction form
    508,568.61/701,833.59 = 279,147.36/x
  3. Step 3: Cross multiply
    508,568.61x = 701,833.59 × 279,147.36
  4. Step 4: Simplify right side
    508,568.61x = 195,914,993,807.82
  5. Step 5: Solve for x
    x = 195,914,993,807.82/508,568.61
  6. Step 6: Final answer
    x = 385,228.25

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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.