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Finding the Fourth Proportional to 303,445.80, 425,446.20 and 303,445.80

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Solution

The fourth proportional to 303,445.80, 425,446.20 and 303,445.80 is: 425,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,445.80 : 425,446.20 = 303,445.80 : x
  2. Step 2: Convert to fraction form
    303,445.80/425,446.20 = 303,445.80/x
  3. Step 3: Cross multiply
    303,445.80x = 425,446.20 × 303,445.80
  4. Step 4: Simplify right side
    303,445.80x = 129,099,862,515.96
  5. Step 5: Solve for x
    x = 129,099,862,515.96/303,445.80
  6. Step 6: Final answer
    x = 425,446.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.