Home / 826,436.56-1,240,319.04-427,194.32

Finding the Fourth Proportional to 826,436.56, 1,240,319.04 and 427,194.32

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Solution

The fourth proportional to 826,436.56, 1,240,319.04 and 427,194.32 is: 641,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,436.56 : 1,240,319.04 = 427,194.32 : x
  2. Step 2: Convert to fraction form
    826,436.56/1,240,319.04 = 427,194.32/x
  3. Step 3: Cross multiply
    826,436.56x = 1,240,319.04 × 427,194.32
  4. Step 4: Simplify right side
    826,436.56x = 529,857,248,875.85
  5. Step 5: Solve for x
    x = 529,857,248,875.85/826,436.56
  6. Step 6: Final answer
    x = 641,134.81

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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.