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Finding the Fourth Proportional to 665,800.56, 998,795.61 and 216,376.92

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Solution

The fourth proportional to 665,800.56, 998,795.61 and 216,376.92 is: 324,596.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,800.56 : 998,795.61 = 216,376.92 : x
  2. Step 2: Convert to fraction form
    665,800.56/998,795.61 = 216,376.92/x
  3. Step 3: Cross multiply
    665,800.56x = 998,795.61 × 216,376.92
  4. Step 4: Simplify right side
    665,800.56x = 216,116,317,801.32
  5. Step 5: Solve for x
    x = 216,116,317,801.32/665,800.56
  6. Step 6: Final answer
    x = 324,596.18

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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.