Home / 1,890,781.76-2,836,171.20-561,085.76

Finding the Fourth Proportional to 1,890,781.76, 2,836,171.20 and 561,085.76

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Solution

The fourth proportional to 1,890,781.76, 2,836,171.20 and 561,085.76 is: 841,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,781.76 : 2,836,171.20 = 561,085.76 : x
  2. Step 2: Convert to fraction form
    1,890,781.76/2,836,171.20 = 561,085.76/x
  3. Step 3: Cross multiply
    1,890,781.76x = 2,836,171.20 × 561,085.76
  4. Step 4: Simplify right side
    1,890,781.76x = 1,591,335,273,242.11
  5. Step 5: Solve for x
    x = 1,591,335,273,242.11/1,890,781.76
  6. Step 6: Final answer
    x = 841,628.21

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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.