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Finding the Fourth Proportional to 481,753.52, 722,420.72 and 257,064.24

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Solution

The fourth proportional to 481,753.52, 722,420.72 and 257,064.24 is: 385,484.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,753.52 : 722,420.72 = 257,064.24 : x
  2. Step 2: Convert to fraction form
    481,753.52/722,420.72 = 257,064.24/x
  3. Step 3: Cross multiply
    481,753.52x = 722,420.72 × 257,064.24
  4. Step 4: Simplify right side
    481,753.52x = 185,708,533,347.05
  5. Step 5: Solve for x
    x = 185,708,533,347.05/481,753.52
  6. Step 6: Final answer
    x = 385,484.54

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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.