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Finding the Fourth Proportional to 445,069.76, 614,183.47 and 261,305.26

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Solution

The fourth proportional to 445,069.76, 614,183.47 and 261,305.26 is: 360,593.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,069.76 : 614,183.47 = 261,305.26 : x
  2. Step 2: Convert to fraction form
    445,069.76/614,183.47 = 261,305.26/x
  3. Step 3: Cross multiply
    445,069.76x = 614,183.47 × 261,305.26
  4. Step 4: Simplify right side
    445,069.76x = 160,489,369,127.33
  5. Step 5: Solve for x
    x = 160,489,369,127.33/445,069.76
  6. Step 6: Final answer
    x = 360,593.74

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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.