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Finding the Fourth Proportional to 609,000.20, 913,500.30 and 579,969.80

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Solution

The fourth proportional to 609,000.20, 913,500.30 and 579,969.80 is: 869,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,000.20 : 913,500.30 = 579,969.80 : x
  2. Step 2: Convert to fraction form
    609,000.20/913,500.30 = 579,969.80/x
  3. Step 3: Cross multiply
    609,000.20x = 913,500.30 × 579,969.80
  4. Step 4: Simplify right side
    609,000.20x = 529,802,586,290.94
  5. Step 5: Solve for x
    x = 529,802,586,290.94/609,000.20
  6. Step 6: Final answer
    x = 869,954.70

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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.