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Finding the Fourth Proportional to 445,902.98, 615,145.20 and 264,622.55

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Solution

The fourth proportional to 445,902.98, 615,145.20 and 264,622.55 is: 365,059.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,902.98 : 615,145.20 = 264,622.55 : x
  2. Step 2: Convert to fraction form
    445,902.98/615,145.20 = 264,622.55/x
  3. Step 3: Cross multiply
    445,902.98x = 615,145.20 × 264,622.55
  4. Step 4: Simplify right side
    445,902.98x = 162,781,291,444.26
  5. Step 5: Solve for x
    x = 162,781,291,444.26/445,902.98
  6. Step 6: Final answer
    x = 365,059.89

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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.