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Finding the Fourth Proportional to 809,528.80, 1,211,182.80 and 529,592.80

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Solution

The fourth proportional to 809,528.80, 1,211,182.80 and 529,592.80 is: 792,354.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,528.80 : 1,211,182.80 = 529,592.80 : x
  2. Step 2: Convert to fraction form
    809,528.80/1,211,182.80 = 529,592.80/x
  3. Step 3: Cross multiply
    809,528.80x = 1,211,182.80 × 529,592.80
  4. Step 4: Simplify right side
    809,528.80x = 641,433,690,363.84
  5. Step 5: Solve for x
    x = 641,433,690,363.84/809,528.80
  6. Step 6: Final answer
    x = 792,354.38

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1.5x scale

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.