Home / 319,203.27-440,531.60-238,490.69

Finding the Fourth Proportional to 319,203.27, 440,531.60 and 238,490.69

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Solution

The fourth proportional to 319,203.27, 440,531.60 and 238,490.69 is: 329,140.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,203.27 : 440,531.60 = 238,490.69 : x
  2. Step 2: Convert to fraction form
    319,203.27/440,531.60 = 238,490.69/x
  3. Step 3: Cross multiply
    319,203.27x = 440,531.60 × 238,490.69
  4. Step 4: Simplify right side
    319,203.27x = 105,062,681,855.69
  5. Step 5: Solve for x
    x = 105,062,681,855.69/319,203.27
  6. Step 6: Final answer
    x = 329,140.37

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1.5x scale

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.