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Finding the Fourth Proportional to 481,044.61, 721,353.62 and 256,363.17

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Solution

The fourth proportional to 481,044.61, 721,353.62 and 256,363.17 is: 384,431.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,044.61 : 721,353.62 = 256,363.17 : x
  2. Step 2: Convert to fraction form
    481,044.61/721,353.62 = 256,363.17/x
  3. Step 3: Cross multiply
    481,044.61x = 721,353.62 × 256,363.17
  4. Step 4: Simplify right side
    481,044.61x = 184,928,495,825.59
  5. Step 5: Solve for x
    x = 184,928,495,825.59/481,044.61
  6. Step 6: Final answer
    x = 384,431.07

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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.