Home / 852,163.20-1,276,689.60-519,350.40

Finding the Fourth Proportional to 852,163.20, 1,276,689.60 and 519,350.40

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Solution

The fourth proportional to 852,163.20, 1,276,689.60 and 519,350.40 is: 778,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,163.20 : 1,276,689.60 = 519,350.40 : x
  2. Step 2: Convert to fraction form
    852,163.20/1,276,689.60 = 519,350.40/x
  3. Step 3: Cross multiply
    852,163.20x = 1,276,689.60 × 519,350.40
  4. Step 4: Simplify right side
    852,163.20x = 663,049,254,435.84
  5. Step 5: Solve for x
    x = 663,049,254,435.84/852,163.20
  6. Step 6: Final answer
    x = 778,077.78

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1.5x scale

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.