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Finding the Fourth Proportional to 445,635.36, 615,055.42 and 264,447.19

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Solution

The fourth proportional to 445,635.36, 615,055.42 and 264,447.19 is: 364,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,635.36 : 615,055.42 = 264,447.19 : x
  2. Step 2: Convert to fraction form
    445,635.36/615,055.42 = 264,447.19/x
  3. Step 3: Cross multiply
    445,635.36x = 615,055.42 × 264,447.19
  4. Step 4: Simplify right side
    445,635.36x = 162,649,679,598.73
  5. Step 5: Solve for x
    x = 162,649,679,598.73/445,635.36
  6. Step 6: Final answer
    x = 364,983.78

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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.