Home / 439,142.34-605,952.30-257,912.65

Finding the Fourth Proportional to 439,142.34, 605,952.30 and 257,912.65

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Solution

The fourth proportional to 439,142.34, 605,952.30 and 257,912.65 is: 355,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,142.34 : 605,952.30 = 257,912.65 : x
  2. Step 2: Convert to fraction form
    439,142.34/605,952.30 = 257,912.65/x
  3. Step 3: Cross multiply
    439,142.34x = 605,952.30 × 257,912.65
  4. Step 4: Simplify right side
    439,142.34x = 156,282,766,637.07
  5. Step 5: Solve for x
    x = 156,282,766,637.07/439,142.34
  6. Step 6: Final answer
    x = 355,881.80

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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.