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Finding the Fourth Proportional to 621,827, 932,764.80 and 195,653.60

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Solution

The fourth proportional to 621,827, 932,764.80 and 195,653.60 is: 293,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,827 : 932,764.80 = 195,653.60 : x
  2. Step 2: Convert to fraction form
    621,827/932,764.80 = 195,653.60/x
  3. Step 3: Cross multiply
    621,827x = 932,764.80 × 195,653.60
  4. Step 4: Simplify right side
    621,827x = 182,498,791,073.28
  5. Step 5: Solve for x
    x = 182,498,791,073.28/621,827
  6. Step 6: Final answer
    x = 293,488.05

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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.