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Finding the Fourth Proportional to 319,422.03, 479,450.07 and 169,663.56

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Solution

The fourth proportional to 319,422.03, 479,450.07 and 169,663.56 is: 254,663.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,422.03 : 479,450.07 = 169,663.56 : x
  2. Step 2: Convert to fraction form
    319,422.03/479,450.07 = 169,663.56/x
  3. Step 3: Cross multiply
    319,422.03x = 479,450.07 × 169,663.56
  4. Step 4: Simplify right side
    319,422.03x = 81,345,205,718.45
  5. Step 5: Solve for x
    x = 81,345,205,718.45/319,422.03
  6. Step 6: Final answer
    x = 254,663.73

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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.