Home / 438,808.02-605,619.72-257,619.90

Finding the Fourth Proportional to 438,808.02, 605,619.72 and 257,619.90

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Solution

The fourth proportional to 438,808.02, 605,619.72 and 257,619.90 is: 355,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,808.02 : 605,619.72 = 257,619.90 : x
  2. Step 2: Convert to fraction form
    438,808.02/605,619.72 = 257,619.90/x
  3. Step 3: Cross multiply
    438,808.02x = 605,619.72 × 257,619.90
  4. Step 4: Simplify right side
    438,808.02x = 156,019,691,704.43
  5. Step 5: Solve for x
    x = 156,019,691,704.43/438,808.02
  6. Step 6: Final answer
    x = 355,553.42

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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.