Home / 1,940,881.40-2,912,196.90-929,612.60

Finding the Fourth Proportional to 1,940,881.40, 2,912,196.90 and 929,612.60

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Solution

The fourth proportional to 1,940,881.40, 2,912,196.90 and 929,612.60 is: 1,394,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,940,881.40 : 2,912,196.90 = 929,612.60 : x
  2. Step 2: Convert to fraction form
    1,940,881.40/2,912,196.90 = 929,612.60/x
  3. Step 3: Cross multiply
    1,940,881.40x = 2,912,196.90 × 929,612.60
  4. Step 4: Simplify right side
    1,940,881.40x = 2,707,214,931,920.94
  5. Step 5: Solve for x
    x = 2,707,214,931,920.94/1,940,881.40
  6. Step 6: Final answer
    x = 1,394,837.90

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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.