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Finding the Fourth Proportional to 551,402.55, 827,103.83 and 411,434.55

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Solution

The fourth proportional to 551,402.55, 827,103.83 and 411,434.55 is: 617,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,402.55 : 827,103.83 = 411,434.55 : x
  2. Step 2: Convert to fraction form
    551,402.55/827,103.83 = 411,434.55/x
  3. Step 3: Cross multiply
    551,402.55x = 827,103.83 × 411,434.55
  4. Step 4: Simplify right side
    551,402.55x = 340,299,090,042.15
  5. Step 5: Solve for x
    x = 340,299,090,042.15/551,402.55
  6. Step 6: Final answer
    x = 617,151.83

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Similar ratio
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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.