Home / 1,915,972.56-2,874,181.18-636,694.20

Finding the Fourth Proportional to 1,915,972.56, 2,874,181.18 and 636,694.20

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Solution

The fourth proportional to 1,915,972.56, 2,874,181.18 and 636,694.20 is: 955,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,972.56 : 2,874,181.18 = 636,694.20 : x
  2. Step 2: Convert to fraction form
    1,915,972.56/2,874,181.18 = 636,694.20/x
  3. Step 3: Cross multiply
    1,915,972.56x = 2,874,181.18 × 636,694.20
  4. Step 4: Simplify right side
    1,915,972.56x = 1,829,974,487,055.16
  5. Step 5: Solve for x
    x = 1,829,974,487,055.16/1,915,972.56
  6. Step 6: Final answer
    x = 955,115.19

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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.