Home / 319,188.45-440,511.06-238,475.82

Finding the Fourth Proportional to 319,188.45, 440,511.06 and 238,475.82

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Solution

The fourth proportional to 319,188.45, 440,511.06 and 238,475.82 is: 329,119.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,188.45 : 440,511.06 = 238,475.82 : x
  2. Step 2: Convert to fraction form
    319,188.45/440,511.06 = 238,475.82/x
  3. Step 3: Cross multiply
    319,188.45x = 440,511.06 × 238,475.82
  4. Step 4: Simplify right side
    319,188.45x = 105,051,236,252.57
  5. Step 5: Solve for x
    x = 105,051,236,252.57/319,188.45
  6. Step 6: Final answer
    x = 329,119.79

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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.