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Finding the Fourth Proportional to 489,574.69, 675,611.22 and 274,714.23

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Solution

The fourth proportional to 489,574.69, 675,611.22 and 274,714.23 is: 379,104.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,574.69 : 675,611.22 = 274,714.23 : x
  2. Step 2: Convert to fraction form
    489,574.69/675,611.22 = 274,714.23/x
  3. Step 3: Cross multiply
    489,574.69x = 675,611.22 × 274,714.23
  4. Step 4: Simplify right side
    489,574.69x = 185,600,016,081.66
  5. Step 5: Solve for x
    x = 185,600,016,081.66/489,574.69
  6. Step 6: Final answer
    x = 379,104.60

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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.