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Finding the Fourth Proportional to 808,993.32, 1,116,414 and 446,427.60

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Solution

The fourth proportional to 808,993.32, 1,116,414 and 446,427.60 is: 616,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,993.32 : 1,116,414 = 446,427.60 : x
  2. Step 2: Convert to fraction form
    808,993.32/1,116,414 = 446,427.60/x
  3. Step 3: Cross multiply
    808,993.32x = 1,116,414 × 446,427.60
  4. Step 4: Simplify right side
    808,993.32x = 498,398,022,626.40
  5. Step 5: Solve for x
    x = 498,398,022,626.40/808,993.32
  6. Step 6: Final answer
    x = 616,071.86

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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.