Home / 319,017.32-440,274.92-238,304.72

Finding the Fourth Proportional to 319,017.32, 440,274.92 and 238,304.72

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Solution

The fourth proportional to 319,017.32, 440,274.92 and 238,304.72 is: 328,883.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,017.32 : 440,274.92 = 238,304.72 : x
  2. Step 2: Convert to fraction form
    319,017.32/440,274.92 = 238,304.72/x
  3. Step 3: Cross multiply
    319,017.32x = 440,274.92 × 238,304.72
  4. Step 4: Simplify right side
    319,017.32x = 104,919,591,144.49
  5. Step 5: Solve for x
    x = 104,919,591,144.49/319,017.32
  6. Step 6: Final answer
    x = 328,883.68

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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.