Home / 715,456.12-986,918.32-446,717.56

Finding the Fourth Proportional to 715,456.12, 986,918.32 and 446,717.56

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Solution

The fourth proportional to 715,456.12, 986,918.32 and 446,717.56 is: 616,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,456.12 : 986,918.32 = 446,717.56 : x
  2. Step 2: Convert to fraction form
    715,456.12/986,918.32 = 446,717.56/x
  3. Step 3: Cross multiply
    715,456.12x = 986,918.32 × 446,717.56
  4. Step 4: Simplify right side
    715,456.12x = 440,873,743,829.70
  5. Step 5: Solve for x
    x = 440,873,743,829.70/715,456.12
  6. Step 6: Final answer
    x = 616,213.53

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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.