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Finding the Fourth Proportional to 353,168.64, 528,936.48 and 212,617.44

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Solution

The fourth proportional to 353,168.64, 528,936.48 and 212,617.44 is: 318,434.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,168.64 : 528,936.48 = 212,617.44 : x
  2. Step 2: Convert to fraction form
    353,168.64/528,936.48 = 212,617.44/x
  3. Step 3: Cross multiply
    353,168.64x = 528,936.48 × 212,617.44
  4. Step 4: Simplify right side
    353,168.64x = 112,461,120,300.21
  5. Step 5: Solve for x
    x = 112,461,120,300.21/353,168.64
  6. Step 6: Final answer
    x = 318,434.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.