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Finding the Fourth Proportional to 481,038.66, 721,806.86 and 349,008.66

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Solution

The fourth proportional to 481,038.66, 721,806.86 and 349,008.66 is: 523,693.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,038.66 : 721,806.86 = 349,008.66 : x
  2. Step 2: Convert to fraction form
    481,038.66/721,806.86 = 349,008.66/x
  3. Step 3: Cross multiply
    481,038.66x = 721,806.86 × 349,008.66
  4. Step 4: Simplify right side
    481,038.66x = 251,916,845,859.93
  5. Step 5: Solve for x
    x = 251,916,845,859.93/481,038.66
  6. Step 6: Final answer
    x = 523,693.55

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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.