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Finding the Fourth Proportional to 551,854.30, 827,781.45 and 410,136.70

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Solution

The fourth proportional to 551,854.30, 827,781.45 and 410,136.70 is: 615,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,854.30 : 827,781.45 = 410,136.70 : x
  2. Step 2: Convert to fraction form
    551,854.30/827,781.45 = 410,136.70/x
  3. Step 3: Cross multiply
    551,854.30x = 827,781.45 × 410,136.70
  4. Step 4: Simplify right side
    551,854.30x = 339,503,552,224.22
  5. Step 5: Solve for x
    x = 339,503,552,224.22/551,854.30
  6. Step 6: Final answer
    x = 615,205.05

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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.