Home / 856,663.47-1,182,195.21-512,513.97

Finding the Fourth Proportional to 856,663.47, 1,182,195.21 and 512,513.97

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Solution

The fourth proportional to 856,663.47, 1,182,195.21 and 512,513.97 is: 707,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,663.47 : 1,182,195.21 = 512,513.97 : x
  2. Step 2: Convert to fraction form
    856,663.47/1,182,195.21 = 512,513.97/x
  3. Step 3: Cross multiply
    856,663.47x = 1,182,195.21 × 512,513.97
  4. Step 4: Simplify right side
    856,663.47x = 605,891,560,392.08
  5. Step 5: Solve for x
    x = 605,891,560,392.08/856,663.47
  6. Step 6: Final answer
    x = 707,269.05

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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.