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Finding the Fourth Proportional to 554,371.56, 765,033.91 and 299,722.75

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Solution

The fourth proportional to 554,371.56, 765,033.91 and 299,722.75 is: 413,618.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,371.56 : 765,033.91 = 299,722.75 : x
  2. Step 2: Convert to fraction form
    554,371.56/765,033.91 = 299,722.75/x
  3. Step 3: Cross multiply
    554,371.56x = 765,033.91 × 299,722.75
  4. Step 4: Simplify right side
    554,371.56x = 229,298,066,372.50
  5. Step 5: Solve for x
    x = 229,298,066,372.50/554,371.56
  6. Step 6: Final answer
    x = 413,618.02

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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.