Home / 724,188.40-1,085,116.20-605,215.60

Finding the Fourth Proportional to 724,188.40, 1,085,116.20 and 605,215.60

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Solution

The fourth proportional to 724,188.40, 1,085,116.20 and 605,215.60 is: 906,848.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,188.40 : 1,085,116.20 = 605,215.60 : x
  2. Step 2: Convert to fraction form
    724,188.40/1,085,116.20 = 605,215.60/x
  3. Step 3: Cross multiply
    724,188.40x = 1,085,116.20 × 605,215.60
  4. Step 4: Simplify right side
    724,188.40x = 656,729,252,052.72
  5. Step 5: Solve for x
    x = 656,729,252,052.72/724,188.40
  6. Step 6: Final answer
    x = 906,848.62

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Double scale
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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.