Home / 826,435.56-1,240,317.54-427,193.32

Finding the Fourth Proportional to 826,435.56, 1,240,317.54 and 427,193.32

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Solution

The fourth proportional to 826,435.56, 1,240,317.54 and 427,193.32 is: 641,133.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,435.56 : 1,240,317.54 = 427,193.32 : x
  2. Step 2: Convert to fraction form
    826,435.56/1,240,317.54 = 427,193.32/x
  3. Step 3: Cross multiply
    826,435.56x = 1,240,317.54 × 427,193.32
  4. Step 4: Simplify right side
    826,435.56x = 529,855,367,766.83
  5. Step 5: Solve for x
    x = 529,855,367,766.83/826,435.56
  6. Step 6: Final answer
    x = 641,133.31

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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.