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Finding the Fourth Proportional to 339,810.68, 468,247.70 and 262,862.42

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Solution

The fourth proportional to 339,810.68, 468,247.70 and 262,862.42 is: 362,215.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,810.68 : 468,247.70 = 262,862.42 : x
  2. Step 2: Convert to fraction form
    339,810.68/468,247.70 = 262,862.42/x
  3. Step 3: Cross multiply
    339,810.68x = 468,247.70 × 262,862.42
  4. Step 4: Simplify right side
    339,810.68x = 123,084,723,581.43
  5. Step 5: Solve for x
    x = 123,084,723,581.43/339,810.68
  6. Step 6: Final answer
    x = 362,215.58

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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.