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Finding the Fourth Proportional to 554,330.88, 764,976.42 and 299,682

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Solution

The fourth proportional to 554,330.88, 764,976.42 and 299,682 is: 413,561.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,330.88 : 764,976.42 = 299,682 : x
  2. Step 2: Convert to fraction form
    554,330.88/764,976.42 = 299,682/x
  3. Step 3: Cross multiply
    554,330.88x = 764,976.42 × 299,682
  4. Step 4: Simplify right side
    554,330.88x = 229,249,663,498.44
  5. Step 5: Solve for x
    x = 229,249,663,498.44/554,330.88
  6. Step 6: Final answer
    x = 413,561.05

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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.