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Finding the Fourth Proportional to 444,598.11, 613,377.91 and 291,720.69

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Solution

The fourth proportional to 444,598.11, 613,377.91 and 291,720.69 is: 402,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,598.11 : 613,377.91 = 291,720.69 : x
  2. Step 2: Convert to fraction form
    444,598.11/613,377.91 = 291,720.69/x
  3. Step 3: Cross multiply
    444,598.11x = 613,377.91 × 291,720.69
  4. Step 4: Simplify right side
    444,598.11x = 178,935,022,610.47
  5. Step 5: Solve for x
    x = 178,935,022,610.47/444,598.11
  6. Step 6: Final answer
    x = 402,464.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.