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Finding the Fourth Proportional to 335,645.32, 462,954.72 and 220,887.40

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Solution

The fourth proportional to 335,645.32, 462,954.72 and 220,887.40 is: 304,669.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,645.32 : 462,954.72 = 220,887.40 : x
  2. Step 2: Convert to fraction form
    335,645.32/462,954.72 = 220,887.40/x
  3. Step 3: Cross multiply
    335,645.32x = 462,954.72 × 220,887.40
  4. Step 4: Simplify right side
    335,645.32x = 102,260,864,418.53
  5. Step 5: Solve for x
    x = 102,260,864,418.53/335,645.32
  6. Step 6: Final answer
    x = 304,669.42

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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.