Home / 851,912.20-1,276,313.10-519,099.40

Finding the Fourth Proportional to 851,912.20, 1,276,313.10 and 519,099.40

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Solution

The fourth proportional to 851,912.20, 1,276,313.10 and 519,099.40 is: 777,701.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,912.20 : 1,276,313.10 = 519,099.40 : x
  2. Step 2: Convert to fraction form
    851,912.20/1,276,313.10 = 519,099.40/x
  3. Step 3: Cross multiply
    851,912.20x = 1,276,313.10 × 519,099.40
  4. Step 4: Simplify right side
    851,912.20x = 662,533,364,422.14
  5. Step 5: Solve for x
    x = 662,533,364,422.14/851,912.20
  6. Step 6: Final answer
    x = 777,701.46

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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.