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Finding the Fourth Proportional to 763,566.76, 1,053,730.79 and 419,410.76

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Solution

The fourth proportional to 763,566.76, 1,053,730.79 and 419,410.76 is: 578,791.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,566.76 : 1,053,730.79 = 419,410.76 : x
  2. Step 2: Convert to fraction form
    763,566.76/1,053,730.79 = 419,410.76/x
  3. Step 3: Cross multiply
    763,566.76x = 1,053,730.79 × 419,410.76
  4. Step 4: Simplify right side
    763,566.76x = 441,946,031,469.30
  5. Step 5: Solve for x
    x = 441,946,031,469.30/763,566.76
  6. Step 6: Final answer
    x = 578,791.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.