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Finding the Fourth Proportional to 805,527.20, 1,208,728.20 and 332,260.40

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Solution

The fourth proportional to 805,527.20, 1,208,728.20 and 332,260.40 is: 498,571.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,527.20 : 1,208,728.20 = 332,260.40 : x
  2. Step 2: Convert to fraction form
    805,527.20/1,208,728.20 = 332,260.40/x
  3. Step 3: Cross multiply
    805,527.20x = 1,208,728.20 × 332,260.40
  4. Step 4: Simplify right side
    805,527.20x = 401,612,515,223.28
  5. Step 5: Solve for x
    x = 401,612,515,223.28/805,527.20
  6. Step 6: Final answer
    x = 498,571.02

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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.