Home / 686,255.60-1,029,383.40-187,619.60

Finding the Fourth Proportional to 686,255.60, 1,029,383.40 and 187,619.60

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Solution

The fourth proportional to 686,255.60, 1,029,383.40 and 187,619.60 is: 281,429.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,255.60 : 1,029,383.40 = 187,619.60 : x
  2. Step 2: Convert to fraction form
    686,255.60/1,029,383.40 = 187,619.60/x
  3. Step 3: Cross multiply
    686,255.60x = 1,029,383.40 × 187,619.60
  4. Step 4: Simplify right side
    686,255.60x = 193,132,501,754.64
  5. Step 5: Solve for x
    x = 193,132,501,754.64/686,255.60
  6. Step 6: Final answer
    x = 281,429.40

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Similar ratio
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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.