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Finding the Fourth Proportional to 336,308.72, 463,843.60 and 215,461.25

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Solution

The fourth proportional to 336,308.72, 463,843.60 and 215,461.25 is: 297,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,308.72 : 463,843.60 = 215,461.25 : x
  2. Step 2: Convert to fraction form
    336,308.72/463,843.60 = 215,461.25/x
  3. Step 3: Cross multiply
    336,308.72x = 463,843.60 × 215,461.25
  4. Step 4: Simplify right side
    336,308.72x = 99,940,323,351.16
  5. Step 5: Solve for x
    x = 99,940,323,351.16/336,308.72
  6. Step 6: Final answer
    x = 297,168.40

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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.