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Finding the Fourth Proportional to 708,770.78, 1,063,056.61 and 203,374.82

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Solution

The fourth proportional to 708,770.78, 1,063,056.61 and 203,374.82 is: 305,033.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,770.78 : 1,063,056.61 = 203,374.82 : x
  2. Step 2: Convert to fraction form
    708,770.78/1,063,056.61 = 203,374.82/x
  3. Step 3: Cross multiply
    708,770.78x = 1,063,056.61 × 203,374.82
  4. Step 4: Simplify right side
    708,770.78x = 216,198,949,620.42
  5. Step 5: Solve for x
    x = 216,198,949,620.42/708,770.78
  6. Step 6: Final answer
    x = 305,033.67

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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.