Home / 810,090.52-1,117,921.32-447,514.56

Finding the Fourth Proportional to 810,090.52, 1,117,921.32 and 447,514.56

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Solution

The fourth proportional to 810,090.52, 1,117,921.32 and 447,514.56 is: 617,568.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,090.52 : 1,117,921.32 = 447,514.56 : x
  2. Step 2: Convert to fraction form
    810,090.52/1,117,921.32 = 447,514.56/x
  3. Step 3: Cross multiply
    810,090.52x = 1,117,921.32 × 447,514.56
  4. Step 4: Simplify right side
    810,090.52x = 500,286,067,634.42
  5. Step 5: Solve for x
    x = 500,286,067,634.42/810,090.52
  6. Step 6: Final answer
    x = 617,568.11

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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.