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Finding the Fourth Proportional to 445,636.59, 615,057.10 and 264,448.42

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Solution

The fourth proportional to 445,636.59, 615,057.10 and 264,448.42 is: 364,985.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,636.59 : 615,057.10 = 264,448.42 : x
  2. Step 2: Convert to fraction form
    445,636.59/615,057.10 = 264,448.42/x
  3. Step 3: Cross multiply
    445,636.59x = 615,057.10 × 264,448.42
  4. Step 4: Simplify right side
    445,636.59x = 162,650,882,104.10
  5. Step 5: Solve for x
    x = 162,650,882,104.10/445,636.59
  6. Step 6: Final answer
    x = 364,985.47

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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.