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Finding the Fourth Proportional to 484,446.21, 668,525.88 and 303,258.06

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Solution

The fourth proportional to 484,446.21, 668,525.88 and 303,258.06 is: 418,489.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,446.21 : 668,525.88 = 303,258.06 : x
  2. Step 2: Convert to fraction form
    484,446.21/668,525.88 = 303,258.06/x
  3. Step 3: Cross multiply
    484,446.21x = 668,525.88 × 303,258.06
  4. Step 4: Simplify right side
    484,446.21x = 202,735,861,428.59
  5. Step 5: Solve for x
    x = 202,735,861,428.59/484,446.21
  6. Step 6: Final answer
    x = 418,489.93

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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.