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Finding the Fourth Proportional to 659,564.40, 989,346.60 and 160,928.40

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Solution

The fourth proportional to 659,564.40, 989,346.60 and 160,928.40 is: 241,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,564.40 : 989,346.60 = 160,928.40 : x
  2. Step 2: Convert to fraction form
    659,564.40/989,346.60 = 160,928.40/x
  3. Step 3: Cross multiply
    659,564.40x = 989,346.60 × 160,928.40
  4. Step 4: Simplify right side
    659,564.40x = 159,213,965,383.44
  5. Step 5: Solve for x
    x = 159,213,965,383.44/659,564.40
  6. Step 6: Final answer
    x = 241,392.60

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Similar ratio
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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.