Home / 611,387.51-916,786.22-256,306.19

Finding the Fourth Proportional to 611,387.51, 916,786.22 and 256,306.19

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Solution

The fourth proportional to 611,387.51, 916,786.22 and 256,306.19 is: 384,335.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,387.51 : 916,786.22 = 256,306.19 : x
  2. Step 2: Convert to fraction form
    611,387.51/916,786.22 = 256,306.19/x
  3. Step 3: Cross multiply
    611,387.51x = 916,786.22 × 256,306.19
  4. Step 4: Simplify right side
    611,387.51x = 234,977,977,227.24
  5. Step 5: Solve for x
    x = 234,977,977,227.24/611,387.51
  6. Step 6: Final answer
    x = 384,335.59

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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.