Home / 826,396.56-1,240,259.04-427,154.31

Finding the Fourth Proportional to 826,396.56, 1,240,259.04 and 427,154.31

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Solution

The fourth proportional to 826,396.56, 1,240,259.04 and 427,154.31 is: 641,074.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,396.56 : 1,240,259.04 = 427,154.31 : x
  2. Step 2: Convert to fraction form
    826,396.56/1,240,259.04 = 427,154.31/x
  3. Step 3: Cross multiply
    826,396.56x = 1,240,259.04 × 427,154.31
  4. Step 4: Simplify right side
    826,396.56x = 529,781,994,452.46
  5. Step 5: Solve for x
    x = 529,781,994,452.46/826,396.56
  6. Step 6: Final answer
    x = 641,074.78

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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.