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Finding the Fourth Proportional to 469,910.82, 648,459.56 and 255,046.28

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Solution

The fourth proportional to 469,910.82, 648,459.56 and 255,046.28 is: 351,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,910.82 : 648,459.56 = 255,046.28 : x
  2. Step 2: Convert to fraction form
    469,910.82/648,459.56 = 255,046.28/x
  3. Step 3: Cross multiply
    469,910.82x = 648,459.56 × 255,046.28
  4. Step 4: Simplify right side
    469,910.82x = 165,387,197,233.21
  5. Step 5: Solve for x
    x = 165,387,197,233.21/469,910.82
  6. Step 6: Final answer
    x = 351,954.44

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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.