Home / 319,019.58-440,278.04-238,306.97

Finding the Fourth Proportional to 319,019.58, 440,278.04 and 238,306.97

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Solution

The fourth proportional to 319,019.58, 440,278.04 and 238,306.97 is: 328,886.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,019.58 : 440,278.04 = 238,306.97 : x
  2. Step 2: Convert to fraction form
    319,019.58/440,278.04 = 238,306.97/x
  3. Step 3: Cross multiply
    319,019.58x = 440,278.04 × 238,306.97
  4. Step 4: Simplify right side
    319,019.58x = 104,921,322,277.01
  5. Step 5: Solve for x
    x = 104,921,322,277.01/319,019.58
  6. Step 6: Final answer
    x = 328,886.78

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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.