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Finding the Fourth Proportional to 445,636.06, 615,056.39 and 264,447.90

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Solution

The fourth proportional to 445,636.06, 615,056.39 and 264,447.90 is: 364,984.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,636.06 : 615,056.39 = 264,447.90 : x
  2. Step 2: Convert to fraction form
    445,636.06/615,056.39 = 264,447.90/x
  3. Step 3: Cross multiply
    445,636.06x = 615,056.39 × 264,447.90
  4. Step 4: Simplify right side
    445,636.06x = 162,650,368,656.68
  5. Step 5: Solve for x
    x = 162,650,368,656.68/445,636.06
  6. Step 6: Final answer
    x = 364,984.75

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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.