Home / 774,219.87-1,068,387.32-430,078.11

Finding the Fourth Proportional to 774,219.87, 1,068,387.32 and 430,078.11

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Solution

The fourth proportional to 774,219.87, 1,068,387.32 and 430,078.11 is: 593,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,219.87 : 1,068,387.32 = 430,078.11 : x
  2. Step 2: Convert to fraction form
    774,219.87/1,068,387.32 = 430,078.11/x
  3. Step 3: Cross multiply
    774,219.87x = 1,068,387.32 × 430,078.11
  4. Step 4: Simplify right side
    774,219.87x = 459,489,993,983.12
  5. Step 5: Solve for x
    x = 459,489,993,983.12/774,219.87
  6. Step 6: Final answer
    x = 593,487.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.