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Finding the Fourth Proportional to 444,019.13, 666,138.10 and 128,507.93

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Solution

The fourth proportional to 444,019.13, 666,138.10 and 128,507.93 is: 192,793.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,019.13 : 666,138.10 = 128,507.93 : x
  2. Step 2: Convert to fraction form
    444,019.13/666,138.10 = 128,507.93/x
  3. Step 3: Cross multiply
    444,019.13x = 666,138.10 × 128,507.93
  4. Step 4: Simplify right side
    444,019.13x = 85,604,028,325.13
  5. Step 5: Solve for x
    x = 85,604,028,325.13/444,019.13
  6. Step 6: Final answer
    x = 192,793.56

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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.