Home / 753,221-1,039,192.08-426,489.44

Finding the Fourth Proportional to 753,221, 1,039,192.08 and 426,489.44

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Solution

The fourth proportional to 753,221, 1,039,192.08 and 426,489.44 is: 588,412.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,221 : 1,039,192.08 = 426,489.44 : x
  2. Step 2: Convert to fraction form
    753,221/1,039,192.08 = 426,489.44/x
  3. Step 3: Cross multiply
    753,221x = 1,039,192.08 × 426,489.44
  4. Step 4: Simplify right side
    753,221x = 443,204,448,251.64
  5. Step 5: Solve for x
    x = 443,204,448,251.64/753,221
  6. Step 6: Final answer
    x = 588,412.23

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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.