Home / 319,125.38-440,393.64-173,932.78

Finding the Fourth Proportional to 319,125.38, 440,393.64 and 173,932.78

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Solution

The fourth proportional to 319,125.38, 440,393.64 and 173,932.78 is: 240,027.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,125.38 : 440,393.64 = 173,932.78 : x
  2. Step 2: Convert to fraction form
    319,125.38/440,393.64 = 173,932.78/x
  3. Step 3: Cross multiply
    319,125.38x = 440,393.64 × 173,932.78
  4. Step 4: Simplify right side
    319,125.38x = 76,598,887,027.89
  5. Step 5: Solve for x
    x = 76,598,887,027.89/319,125.38
  6. Step 6: Final answer
    x = 240,027.57

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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.