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Finding the Fourth Proportional to 331,967.22, 458,153.49 and 188,748.72

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Solution

The fourth proportional to 331,967.22, 458,153.49 and 188,748.72 is: 260,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,967.22 : 458,153.49 = 188,748.72 : x
  2. Step 2: Convert to fraction form
    331,967.22/458,153.49 = 188,748.72/x
  3. Step 3: Cross multiply
    331,967.22x = 458,153.49 × 188,748.72
  4. Step 4: Simplify right side
    331,967.22x = 86,475,884,801.03
  5. Step 5: Solve for x
    x = 86,475,884,801.03/331,967.22
  6. Step 6: Final answer
    x = 260,495.25

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1.5x scale

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.