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Finding the Fourth Proportional to 303,411.40, 454,679.70 and 134,793.70

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Solution

The fourth proportional to 303,411.40, 454,679.70 and 134,793.70 is: 201,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,411.40 : 454,679.70 = 134,793.70 : x
  2. Step 2: Convert to fraction form
    303,411.40/454,679.70 = 134,793.70/x
  3. Step 3: Cross multiply
    303,411.40x = 454,679.70 × 134,793.70
  4. Step 4: Simplify right side
    303,411.40x = 61,287,959,077.89
  5. Step 5: Solve for x
    x = 61,287,959,077.89/303,411.40
  6. Step 6: Final answer
    x = 201,996.23

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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.