Home / 439,231.56-606,135.31-245,637.12

Finding the Fourth Proportional to 439,231.56, 606,135.31 and 245,637.12

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Solution

The fourth proportional to 439,231.56, 606,135.31 and 245,637.12 is: 338,976.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,231.56 : 606,135.31 = 245,637.12 : x
  2. Step 2: Convert to fraction form
    439,231.56/606,135.31 = 245,637.12/x
  3. Step 3: Cross multiply
    439,231.56x = 606,135.31 × 245,637.12
  4. Step 4: Simplify right side
    439,231.56x = 148,889,331,878.71
  5. Step 5: Solve for x
    x = 148,889,331,878.71/439,231.56
  6. Step 6: Final answer
    x = 338,976.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.