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Finding the Fourth Proportional to 605,217.20, 907,825.80 and 530,421.80

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Solution

The fourth proportional to 605,217.20, 907,825.80 and 530,421.80 is: 795,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,217.20 : 907,825.80 = 530,421.80 : x
  2. Step 2: Convert to fraction form
    605,217.20/907,825.80 = 530,421.80/x
  3. Step 3: Cross multiply
    605,217.20x = 907,825.80 × 530,421.80
  4. Step 4: Simplify right side
    605,217.20x = 481,530,594,922.44
  5. Step 5: Solve for x
    x = 481,530,594,922.44/605,217.20
  6. Step 6: Final answer
    x = 795,632.70

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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.