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Finding the Fourth Proportional to 548,999.60, 823,499.40 and 528,004.40

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Solution

The fourth proportional to 548,999.60, 823,499.40 and 528,004.40 is: 792,006.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,999.60 : 823,499.40 = 528,004.40 : x
  2. Step 2: Convert to fraction form
    548,999.60/823,499.40 = 528,004.40/x
  3. Step 3: Cross multiply
    548,999.60x = 823,499.40 × 528,004.40
  4. Step 4: Simplify right side
    548,999.60x = 434,811,306,597.36
  5. Step 5: Solve for x
    x = 434,811,306,597.36/548,999.60
  6. Step 6: Final answer
    x = 792,006.60

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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.