Home / 826,346.48-1,239,083.66-257,621.58

Finding the Fourth Proportional to 826,346.48, 1,239,083.66 and 257,621.58

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Solution

The fourth proportional to 826,346.48, 1,239,083.66 and 257,621.58 is: 386,296.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,346.48 : 1,239,083.66 = 257,621.58 : x
  2. Step 2: Convert to fraction form
    826,346.48/1,239,083.66 = 257,621.58/x
  3. Step 3: Cross multiply
    826,346.48x = 1,239,083.66 × 257,621.58
  4. Step 4: Simplify right side
    826,346.48x = 319,214,690,885.44
  5. Step 5: Solve for x
    x = 319,214,690,885.44/826,346.48
  6. Step 6: Final answer
    x = 386,296.43

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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.