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Finding the Fourth Proportional to 439,105.74, 605,631.58 and 377,956.01

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Solution

The fourth proportional to 439,105.74, 605,631.58 and 377,956.01 is: 521,291.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,105.74 : 605,631.58 = 377,956.01 : x
  2. Step 2: Convert to fraction form
    439,105.74/605,631.58 = 377,956.01/x
  3. Step 3: Cross multiply
    439,105.74x = 605,631.58 × 377,956.01
  4. Step 4: Simplify right side
    439,105.74x = 228,902,090,588.86
  5. Step 5: Solve for x
    x = 228,902,090,588.86/439,105.74
  6. Step 6: Final answer
    x = 521,291.50

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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.