Home / 319,019.26-440,277.60-238,306.66

Finding the Fourth Proportional to 319,019.26, 440,277.60 and 238,306.66

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Solution

The fourth proportional to 319,019.26, 440,277.60 and 238,306.66 is: 328,886.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,019.26 : 440,277.60 = 238,306.66 : x
  2. Step 2: Convert to fraction form
    319,019.26/440,277.60 = 238,306.66/x
  3. Step 3: Cross multiply
    319,019.26x = 440,277.60 × 238,306.66
  4. Step 4: Simplify right side
    319,019.26x = 104,921,084,328.82
  5. Step 5: Solve for x
    x = 104,921,084,328.82/319,019.26
  6. Step 6: Final answer
    x = 328,886.36

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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.