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Finding the Fourth Proportional to 319,067.64, 440,314.12 and 173,874.52

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Solution

The fourth proportional to 319,067.64, 440,314.12 and 173,874.52 is: 239,947.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,067.64 : 440,314.12 = 173,874.52 : x
  2. Step 2: Convert to fraction form
    319,067.64/440,314.12 = 173,874.52/x
  3. Step 3: Cross multiply
    319,067.64x = 440,314.12 × 173,874.52
  4. Step 4: Simplify right side
    319,067.64x = 76,559,406,264.22
  5. Step 5: Solve for x
    x = 76,559,406,264.22/319,067.64
  6. Step 6: Final answer
    x = 239,947.26

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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.