Home / 312,326.75-431,011.06-169,086.83

Finding the Fourth Proportional to 312,326.75, 431,011.06 and 169,086.83

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Solution

The fourth proportional to 312,326.75, 431,011.06 and 169,086.83 is: 233,339.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,326.75 : 431,011.06 = 169,086.83 : x
  2. Step 2: Convert to fraction form
    312,326.75/431,011.06 = 169,086.83/x
  3. Step 3: Cross multiply
    312,326.75x = 431,011.06 × 169,086.83
  4. Step 4: Simplify right side
    312,326.75x = 72,878,291,252.57
  5. Step 5: Solve for x
    x = 72,878,291,252.57/312,326.75
  6. Step 6: Final answer
    x = 233,339.89

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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.