Home / 1,901,237.70-2,851,856.55-780,111.30

Finding the Fourth Proportional to 1,901,237.70, 2,851,856.55 and 780,111.30

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Solution

The fourth proportional to 1,901,237.70, 2,851,856.55 and 780,111.30 is: 1,170,166.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901,237.70 : 2,851,856.55 = 780,111.30 : x
  2. Step 2: Convert to fraction form
    1,901,237.70/2,851,856.55 = 780,111.30/x
  3. Step 3: Cross multiply
    1,901,237.70x = 2,851,856.55 × 780,111.30
  4. Step 4: Simplify right side
    1,901,237.70x = 2,224,765,520,634.02
  5. Step 5: Solve for x
    x = 2,224,765,520,634.02/1,901,237.70
  6. Step 6: Final answer
    x = 1,170,166.95

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Double scale
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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.