Home / 699,997.60-1,049,996.40-256,938.40

Finding the Fourth Proportional to 699,997.60, 1,049,996.40 and 256,938.40

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Solution

The fourth proportional to 699,997.60, 1,049,996.40 and 256,938.40 is: 385,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,997.60 : 1,049,996.40 = 256,938.40 : x
  2. Step 2: Convert to fraction form
    699,997.60/1,049,996.40 = 256,938.40/x
  3. Step 3: Cross multiply
    699,997.60x = 1,049,996.40 × 256,938.40
  4. Step 4: Simplify right side
    699,997.60x = 269,784,395,021.76
  5. Step 5: Solve for x
    x = 269,784,395,021.76/699,997.60
  6. Step 6: Final answer
    x = 385,407.60

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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.