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Finding the Fourth Proportional to 296,960.70, 445,441.05 and 260,096.70

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Solution

The fourth proportional to 296,960.70, 445,441.05 and 260,096.70 is: 390,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,960.70 : 445,441.05 = 260,096.70 : x
  2. Step 2: Convert to fraction form
    296,960.70/445,441.05 = 260,096.70/x
  3. Step 3: Cross multiply
    296,960.70x = 445,441.05 × 260,096.70
  4. Step 4: Simplify right side
    296,960.70x = 115,857,747,149.54
  5. Step 5: Solve for x
    x = 115,857,747,149.54/296,960.70
  6. Step 6: Final answer
    x = 390,145.05

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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.