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Finding the Fourth Proportional to 528,091.80, 792,137.70 and 482,472.60

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Solution

The fourth proportional to 528,091.80, 792,137.70 and 482,472.60 is: 723,708.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,091.80 : 792,137.70 = 482,472.60 : x
  2. Step 2: Convert to fraction form
    528,091.80/792,137.70 = 482,472.60/x
  3. Step 3: Cross multiply
    528,091.80x = 792,137.70 × 482,472.60
  4. Step 4: Simplify right side
    528,091.80x = 382,184,735,677.02
  5. Step 5: Solve for x
    x = 382,184,735,677.02/528,091.80
  6. Step 6: Final answer
    x = 723,708.90

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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.