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Finding the Fourth Proportional to 440,364.12, 660,800.41 and 237,960.91

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Solution

The fourth proportional to 440,364.12, 660,800.41 and 237,960.91 is: 357,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,364.12 : 660,800.41 = 237,960.91 : x
  2. Step 2: Convert to fraction form
    440,364.12/660,800.41 = 237,960.91/x
  3. Step 3: Cross multiply
    440,364.12x = 660,800.41 × 237,960.91
  4. Step 4: Simplify right side
    440,364.12x = 157,244,666,891.97
  5. Step 5: Solve for x
    x = 157,244,666,891.97/440,364.12
  6. Step 6: Final answer
    x = 357,078.74

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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.