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Finding the Fourth Proportional to 665,893.14, 998,848.92 and 216,616.32

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Solution

The fourth proportional to 665,893.14, 998,848.92 and 216,616.32 is: 324,927.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,893.14 : 998,848.92 = 216,616.32 : x
  2. Step 2: Convert to fraction form
    665,893.14/998,848.92 = 216,616.32/x
  3. Step 3: Cross multiply
    665,893.14x = 998,848.92 × 216,616.32
  4. Step 4: Simplify right side
    665,893.14x = 216,366,977,286.37
  5. Step 5: Solve for x
    x = 216,366,977,286.37/665,893.14
  6. Step 6: Final answer
    x = 324,927.48

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1.5x scale

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.