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Finding the Fourth Proportional to 479,436.30, 718,656.30 and 195,004.80

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Solution

The fourth proportional to 479,436.30, 718,656.30 and 195,004.80 is: 292,304.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,436.30 : 718,656.30 = 195,004.80 : x
  2. Step 2: Convert to fraction form
    479,436.30/718,656.30 = 195,004.80/x
  3. Step 3: Cross multiply
    479,436.30x = 718,656.30 × 195,004.80
  4. Step 4: Simplify right side
    479,436.30x = 140,141,428,050.24
  5. Step 5: Solve for x
    x = 140,141,428,050.24/479,436.30
  6. Step 6: Final answer
    x = 292,304.58

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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.