Home / 319,400.41-479,432.91-235,255.58

Finding the Fourth Proportional to 319,400.41, 479,432.91 and 235,255.58

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Solution

The fourth proportional to 319,400.41, 479,432.91 and 235,255.58 is: 353,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,400.41 : 479,432.91 = 235,255.58 : x
  2. Step 2: Convert to fraction form
    319,400.41/479,432.91 = 235,255.58/x
  3. Step 3: Cross multiply
    319,400.41x = 479,432.91 × 235,255.58
  4. Step 4: Simplify right side
    319,400.41x = 112,789,267,313.14
  5. Step 5: Solve for x
    x = 112,789,267,313.14/319,400.41
  6. Step 6: Final answer
    x = 353,128.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.