Home / 531,986.40-797,979.60-427,010.40

Finding the Fourth Proportional to 531,986.40, 797,979.60 and 427,010.40

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Solution

The fourth proportional to 531,986.40, 797,979.60 and 427,010.40 is: 640,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,986.40 : 797,979.60 = 427,010.40 : x
  2. Step 2: Convert to fraction form
    531,986.40/797,979.60 = 427,010.40/x
  3. Step 3: Cross multiply
    531,986.40x = 797,979.60 × 427,010.40
  4. Step 4: Simplify right side
    531,986.40x = 340,745,588,187.84
  5. Step 5: Solve for x
    x = 340,745,588,187.84/531,986.40
  6. Step 6: Final answer
    x = 640,515.60

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Double scale
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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.