Home / 1,398,983.40-2,096,919.90-768,349.80

Finding the Fourth Proportional to 1,398,983.40, 2,096,919.90 and 768,349.80

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Solution

The fourth proportional to 1,398,983.40, 2,096,919.90 and 768,349.80 is: 1,151,670.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,983.40 : 2,096,919.90 = 768,349.80 : x
  2. Step 2: Convert to fraction form
    1,398,983.40/2,096,919.90 = 768,349.80/x
  3. Step 3: Cross multiply
    1,398,983.40x = 2,096,919.90 × 768,349.80
  4. Step 4: Simplify right side
    1,398,983.40x = 1,611,167,985,781.02
  5. Step 5: Solve for x
    x = 1,611,167,985,781.02/1,398,983.40
  6. Step 6: Final answer
    x = 1,151,670.55

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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.