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Finding the Fourth Proportional to 479,127.76, 661,194.96 and 275,191.92

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Solution

The fourth proportional to 479,127.76, 661,194.96 and 275,191.92 is: 379,764.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,127.76 : 661,194.96 = 275,191.92 : x
  2. Step 2: Convert to fraction form
    479,127.76/661,194.96 = 275,191.92/x
  3. Step 3: Cross multiply
    479,127.76x = 661,194.96 × 275,191.92
  4. Step 4: Simplify right side
    479,127.76x = 181,955,510,536.72
  5. Step 5: Solve for x
    x = 181,955,510,536.72/479,127.76
  6. Step 6: Final answer
    x = 379,764.07

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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.