Home / 919,231.60-1,268,021.44-551,613.60

Finding the Fourth Proportional to 919,231.60, 1,268,021.44 and 551,613.60

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Solution

The fourth proportional to 919,231.60, 1,268,021.44 and 551,613.60 is: 760,915.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,231.60 : 1,268,021.44 = 551,613.60 : x
  2. Step 2: Convert to fraction form
    919,231.60/1,268,021.44 = 551,613.60/x
  3. Step 3: Cross multiply
    919,231.60x = 1,268,021.44 × 551,613.60
  4. Step 4: Simplify right side
    919,231.60x = 699,457,871,395.58
  5. Step 5: Solve for x
    x = 699,457,871,395.58/919,231.60
  6. Step 6: Final answer
    x = 760,915.83

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1.5x scale

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.