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Finding the Fourth Proportional to 545,182.36, 818,123.46 and 264,546.52

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Solution

The fourth proportional to 545,182.36, 818,123.46 and 264,546.52 is: 396,989.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,182.36 : 818,123.46 = 264,546.52 : x
  2. Step 2: Convert to fraction form
    545,182.36/818,123.46 = 264,546.52/x
  3. Step 3: Cross multiply
    545,182.36x = 818,123.46 × 264,546.52
  4. Step 4: Simplify right side
    545,182.36x = 216,431,714,273.36
  5. Step 5: Solve for x
    x = 216,431,714,273.36/545,182.36
  6. Step 6: Final answer
    x = 396,989.58

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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.