Home / 1,216,052.52-1,678,152.84-664,770.64

Finding the Fourth Proportional to 1,216,052.52, 1,678,152.84 and 664,770.64

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Solution

The fourth proportional to 1,216,052.52, 1,678,152.84 and 664,770.64 is: 917,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,052.52 : 1,678,152.84 = 664,770.64 : x
  2. Step 2: Convert to fraction form
    1,216,052.52/1,678,152.84 = 664,770.64/x
  3. Step 3: Cross multiply
    1,216,052.52x = 1,678,152.84 × 664,770.64
  4. Step 4: Simplify right side
    1,216,052.52x = 1,115,586,737,464.62
  5. Step 5: Solve for x
    x = 1,115,586,737,464.62/1,216,052.52
  6. Step 6: Final answer
    x = 917,383.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.