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Finding the Fourth Proportional to 684,693, 1,026,787.62 and 235,286.28

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Solution

The fourth proportional to 684,693, 1,026,787.62 and 235,286.28 is: 352,842.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,693 : 1,026,787.62 = 235,286.28 : x
  2. Step 2: Convert to fraction form
    684,693/1,026,787.62 = 235,286.28/x
  3. Step 3: Cross multiply
    684,693x = 1,026,787.62 × 235,286.28
  4. Step 4: Simplify right side
    684,693x = 241,589,039,459.85
  5. Step 5: Solve for x
    x = 241,589,039,459.85/684,693
  6. Step 6: Final answer
    x = 352,842.86

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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.