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Finding the Fourth Proportional to 481,036.10, 721,803.12 and 349,006.10

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Solution

The fourth proportional to 481,036.10, 721,803.12 and 349,006.10 is: 523,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,036.10 : 721,803.12 = 349,006.10 : x
  2. Step 2: Convert to fraction form
    481,036.10/721,803.12 = 349,006.10/x
  3. Step 3: Cross multiply
    481,036.10x = 721,803.12 × 349,006.10
  4. Step 4: Simplify right side
    481,036.10x = 251,913,691,879.03
  5. Step 5: Solve for x
    x = 251,913,691,879.03/481,036.10
  6. Step 6: Final answer
    x = 523,689.79

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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.