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Finding the Fourth Proportional to 303,422.30, 424,003.90 and 303,422.30

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Solution

The fourth proportional to 303,422.30, 424,003.90 and 303,422.30 is: 424,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,422.30 : 424,003.90 = 303,422.30 : x
  2. Step 2: Convert to fraction form
    303,422.30/424,003.90 = 303,422.30/x
  3. Step 3: Cross multiply
    303,422.30x = 424,003.90 × 303,422.30
  4. Step 4: Simplify right side
    303,422.30x = 128,652,238,546.97
  5. Step 5: Solve for x
    x = 128,652,238,546.97/303,422.30
  6. Step 6: Final answer
    x = 424,003.90

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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.