Home / 811,537.38-1,216,514.96-338,358.06

Finding the Fourth Proportional to 811,537.38, 1,216,514.96 and 338,358.06

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Solution

The fourth proportional to 811,537.38, 1,216,514.96 and 338,358.06 is: 507,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,537.38 : 1,216,514.96 = 338,358.06 : x
  2. Step 2: Convert to fraction form
    811,537.38/1,216,514.96 = 338,358.06/x
  3. Step 3: Cross multiply
    811,537.38x = 1,216,514.96 × 338,358.06
  4. Step 4: Simplify right side
    811,537.38x = 411,617,635,744.00
  5. Step 5: Solve for x
    x = 411,617,635,744.00/811,537.38
  6. Step 6: Final answer
    x = 507,207.24

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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.