Home / 991,939.36-1,368,891.60-539,232.16

Finding the Fourth Proportional to 991,939.36, 1,368,891.60 and 539,232.16

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Solution

The fourth proportional to 991,939.36, 1,368,891.60 and 539,232.16 is: 744,148.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,939.36 : 1,368,891.60 = 539,232.16 : x
  2. Step 2: Convert to fraction form
    991,939.36/1,368,891.60 = 539,232.16/x
  3. Step 3: Cross multiply
    991,939.36x = 1,368,891.60 × 539,232.16
  4. Step 4: Simplify right side
    991,939.36x = 738,150,374,273.86
  5. Step 5: Solve for x
    x = 738,150,374,273.86/991,939.36
  6. Step 6: Final answer
    x = 744,148.69

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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.