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Finding the Fourth Proportional to 551,296.60, 827,139.30 and 531,856.60

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Solution

The fourth proportional to 551,296.60, 827,139.30 and 531,856.60 is: 797,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,296.60 : 827,139.30 = 531,856.60 : x
  2. Step 2: Convert to fraction form
    551,296.60/827,139.30 = 531,856.60/x
  3. Step 3: Cross multiply
    551,296.60x = 827,139.30 × 531,856.60
  4. Step 4: Simplify right side
    551,296.60x = 439,919,495,824.38
  5. Step 5: Solve for x
    x = 439,919,495,824.38/551,296.60
  6. Step 6: Final answer
    x = 797,972.45

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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.