Home / 1,263,311.40-1,894,766.62-410,403.28

Finding the Fourth Proportional to 1,263,311.40, 1,894,766.62 and 410,403.28

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Solution

The fourth proportional to 1,263,311.40, 1,894,766.62 and 410,403.28 is: 615,539.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,311.40 : 1,894,766.62 = 410,403.28 : x
  2. Step 2: Convert to fraction form
    1,263,311.40/1,894,766.62 = 410,403.28/x
  3. Step 3: Cross multiply
    1,263,311.40x = 1,894,766.62 × 410,403.28
  4. Step 4: Simplify right side
    1,263,311.40x = 777,618,435,682.51
  5. Step 5: Solve for x
    x = 777,618,435,682.51/1,263,311.40
  6. Step 6: Final answer
    x = 615,539.79

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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.