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Finding the Fourth Proportional to 550,871.60, 826,501.80 and 531,431.60

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Solution

The fourth proportional to 550,871.60, 826,501.80 and 531,431.60 is: 797,334.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,871.60 : 826,501.80 = 531,431.60 : x
  2. Step 2: Convert to fraction form
    550,871.60/826,501.80 = 531,431.60/x
  3. Step 3: Cross multiply
    550,871.60x = 826,501.80 × 531,431.60
  4. Step 4: Simplify right side
    550,871.60x = 439,229,173,976.88
  5. Step 5: Solve for x
    x = 439,229,173,976.88/550,871.60
  6. Step 6: Final answer
    x = 797,334.94

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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.