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Finding the Fourth Proportional to 354,349.77, 531,773.74 and 320,470.41

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Solution

The fourth proportional to 354,349.77, 531,773.74 and 320,470.41 is: 480,930.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,349.77 : 531,773.74 = 320,470.41 : x
  2. Step 2: Convert to fraction form
    354,349.77/531,773.74 = 320,470.41/x
  3. Step 3: Cross multiply
    354,349.77x = 531,773.74 × 320,470.41
  4. Step 4: Simplify right side
    354,349.77x = 170,417,748,485.03
  5. Step 5: Solve for x
    x = 170,417,748,485.03/354,349.77
  6. Step 6: Final answer
    x = 480,930.88

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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.