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Finding the Fourth Proportional to 609,082.45, 913,109.97 and 383,946.76

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Solution

The fourth proportional to 609,082.45, 913,109.97 and 383,946.76 is: 575,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,082.45 : 913,109.97 = 383,946.76 : x
  2. Step 2: Convert to fraction form
    609,082.45/913,109.97 = 383,946.76/x
  3. Step 3: Cross multiply
    609,082.45x = 913,109.97 × 383,946.76
  4. Step 4: Simplify right side
    609,082.45x = 350,585,614,505.20
  5. Step 5: Solve for x
    x = 350,585,614,505.20/609,082.45
  6. Step 6: Final answer
    x = 575,596.32

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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.