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Finding the Fourth Proportional to 479,858.61, 719,785.88 and 195,485.74

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Solution

The fourth proportional to 479,858.61, 719,785.88 and 195,485.74 is: 293,227.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,858.61 : 719,785.88 = 195,485.74 : x
  2. Step 2: Convert to fraction form
    479,858.61/719,785.88 = 195,485.74/x
  3. Step 3: Cross multiply
    479,858.61x = 719,785.88 × 195,485.74
  4. Step 4: Simplify right side
    479,858.61x = 140,707,873,349.53
  5. Step 5: Solve for x
    x = 140,707,873,349.53/479,858.61
  6. Step 6: Final answer
    x = 293,227.77

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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.