Home / 759,986.40-1,139,979.60-199,077.60

Finding the Fourth Proportional to 759,986.40, 1,139,979.60 and 199,077.60

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Solution

The fourth proportional to 759,986.40, 1,139,979.60 and 199,077.60 is: 298,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,986.40 : 1,139,979.60 = 199,077.60 : x
  2. Step 2: Convert to fraction form
    759,986.40/1,139,979.60 = 199,077.60/x
  3. Step 3: Cross multiply
    759,986.40x = 1,139,979.60 × 199,077.60
  4. Step 4: Simplify right side
    759,986.40x = 226,944,402,816.96
  5. Step 5: Solve for x
    x = 226,944,402,816.96/759,986.40
  6. Step 6: Final answer
    x = 298,616.40

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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.