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Finding the Fourth Proportional to 445,997.22, 615,986.99 and 293,716.11

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Solution

The fourth proportional to 445,997.22, 615,986.99 and 293,716.11 is: 405,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,997.22 : 615,986.99 = 293,716.11 : x
  2. Step 2: Convert to fraction form
    445,997.22/615,986.99 = 293,716.11/x
  3. Step 3: Cross multiply
    445,997.22x = 615,986.99 × 293,716.11
  4. Step 4: Simplify right side
    445,997.22x = 180,925,301,044.83
  5. Step 5: Solve for x
    x = 180,925,301,044.83/445,997.22
  6. Step 6: Final answer
    x = 405,664.64

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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.