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Finding the Fourth Proportional to 708,705, 1,062,965.18 and 203,245.56

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Solution

The fourth proportional to 708,705, 1,062,965.18 and 203,245.56 is: 304,841.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,705 : 1,062,965.18 = 203,245.56 : x
  2. Step 2: Convert to fraction form
    708,705/1,062,965.18 = 203,245.56/x
  3. Step 3: Cross multiply
    708,705x = 1,062,965.18 × 203,245.56
  4. Step 4: Simplify right side
    708,705x = 216,042,953,269.60
  5. Step 5: Solve for x
    x = 216,042,953,269.60/708,705
  6. Step 6: Final answer
    x = 304,841.86

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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.