Home / 811,536.88-1,216,514.21-338,357.56

Finding the Fourth Proportional to 811,536.88, 1,216,514.21 and 338,357.56

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Solution

The fourth proportional to 811,536.88, 1,216,514.21 and 338,357.56 is: 507,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,536.88 : 1,216,514.21 = 338,357.56 : x
  2. Step 2: Convert to fraction form
    811,536.88/1,216,514.21 = 338,357.56/x
  3. Step 3: Cross multiply
    811,536.88x = 1,216,514.21 × 338,357.56
  4. Step 4: Simplify right side
    811,536.88x = 411,616,773,718.36
  5. Step 5: Solve for x
    x = 411,616,773,718.36/811,536.88
  6. Step 6: Final answer
    x = 507,206.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.