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Finding the Fourth Proportional to 444,013.98, 666,130.37 and 128,502.78

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Solution

The fourth proportional to 444,013.98, 666,130.37 and 128,502.78 is: 192,785.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,013.98 : 666,130.37 = 128,502.78 : x
  2. Step 2: Convert to fraction form
    444,013.98/666,130.37 = 128,502.78/x
  3. Step 3: Cross multiply
    444,013.98x = 666,130.37 × 128,502.78
  4. Step 4: Simplify right side
    444,013.98x = 85,599,604,387.43
  5. Step 5: Solve for x
    x = 85,599,604,387.43/444,013.98
  6. Step 6: Final answer
    x = 192,785.83

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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.