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Finding the Fourth Proportional to 319,633.47, 479,324.88 and 119,844.95

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Solution

The fourth proportional to 319,633.47, 479,324.88 and 119,844.95 is: 179,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,633.47 : 479,324.88 = 119,844.95 : x
  2. Step 2: Convert to fraction form
    319,633.47/479,324.88 = 119,844.95/x
  3. Step 3: Cross multiply
    319,633.47x = 479,324.88 × 119,844.95
  4. Step 4: Simplify right side
    319,633.47x = 57,444,663,880.73
  5. Step 5: Solve for x
    x = 57,444,663,880.73/319,633.47
  6. Step 6: Final answer
    x = 179,720.43

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1.5x scale

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.