Home / 319,018.26-440,276.22-238,305.66

Finding the Fourth Proportional to 319,018.26, 440,276.22 and 238,305.66

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Solution

The fourth proportional to 319,018.26, 440,276.22 and 238,305.66 is: 328,884.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,018.26 : 440,276.22 = 238,305.66 : x
  2. Step 2: Convert to fraction form
    319,018.26/440,276.22 = 238,305.66/x
  3. Step 3: Cross multiply
    319,018.26x = 440,276.22 × 238,305.66
  4. Step 4: Simplify right side
    319,018.26x = 104,920,313,538.37
  5. Step 5: Solve for x
    x = 104,920,313,538.37/319,018.26
  6. Step 6: Final answer
    x = 328,884.98

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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.