Home / 810,515.58-1,118,512.83-447,939.33

Finding the Fourth Proportional to 810,515.58, 1,118,512.83 and 447,939.33

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Solution

The fourth proportional to 810,515.58, 1,118,512.83 and 447,939.33 is: 618,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,515.58 : 1,118,512.83 = 447,939.33 : x
  2. Step 2: Convert to fraction form
    810,515.58/1,118,512.83 = 447,939.33/x
  3. Step 3: Cross multiply
    810,515.58x = 1,118,512.83 × 447,939.33
  4. Step 4: Simplify right side
    810,515.58x = 501,025,887,666.60
  5. Step 5: Solve for x
    x = 501,025,887,666.60/810,515.58
  6. Step 6: Final answer
    x = 618,157.01

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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.