Home / 319,721.55-441,215.78-176,481.64

Finding the Fourth Proportional to 319,721.55, 441,215.78 and 176,481.64

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Solution

The fourth proportional to 319,721.55, 441,215.78 and 176,481.64 is: 243,544.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,721.55 : 441,215.78 = 176,481.64 : x
  2. Step 2: Convert to fraction form
    319,721.55/441,215.78 = 176,481.64/x
  3. Step 3: Cross multiply
    319,721.55x = 441,215.78 × 176,481.64
  4. Step 4: Simplify right side
    319,721.55x = 77,866,483,124.62
  5. Step 5: Solve for x
    x = 77,866,483,124.62/319,721.55
  6. Step 6: Final answer
    x = 243,544.68

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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.