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Finding the Fourth Proportional to 763,796.78, 1,143,950.91 and 364,718.48

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Solution

The fourth proportional to 763,796.78, 1,143,950.91 and 364,718.48 is: 546,244.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,796.78 : 1,143,950.91 = 364,718.48 : x
  2. Step 2: Convert to fraction form
    763,796.78/1,143,950.91 = 364,718.48/x
  3. Step 3: Cross multiply
    763,796.78x = 1,143,950.91 × 364,718.48
  4. Step 4: Simplify right side
    763,796.78x = 417,220,037,089.82
  5. Step 5: Solve for x
    x = 417,220,037,089.82/763,796.78
  6. Step 6: Final answer
    x = 546,244.82

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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.