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Finding the Fourth Proportional to 481,038.54, 721,806.68 and 349,008.54

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Solution

The fourth proportional to 481,038.54, 721,806.68 and 349,008.54 is: 523,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,038.54 : 721,806.68 = 349,008.54 : x
  2. Step 2: Convert to fraction form
    481,038.54/721,806.68 = 349,008.54/x
  3. Step 3: Cross multiply
    481,038.54x = 721,806.68 × 349,008.54
  4. Step 4: Simplify right side
    481,038.54x = 251,916,695,549.05
  5. Step 5: Solve for x
    x = 251,916,695,549.05/481,038.54
  6. Step 6: Final answer
    x = 523,693.37

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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.