Home / 819,249.72-1,130,101.56-512,794.06

Finding the Fourth Proportional to 819,249.72, 1,130,101.56 and 512,794.06

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Solution

The fourth proportional to 819,249.72, 1,130,101.56 and 512,794.06 is: 707,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,249.72 : 1,130,101.56 = 512,794.06 : x
  2. Step 2: Convert to fraction form
    819,249.72/1,130,101.56 = 512,794.06/x
  3. Step 3: Cross multiply
    819,249.72x = 1,130,101.56 × 512,794.06
  4. Step 4: Simplify right side
    819,249.72x = 579,509,367,164.73
  5. Step 5: Solve for x
    x = 579,509,367,164.73/819,249.72
  6. Step 6: Final answer
    x = 707,365.96

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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.