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Finding the Fourth Proportional to 316,811.58, 437,200.32 and 171,617.70

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Solution

The fourth proportional to 316,811.58, 437,200.32 and 171,617.70 is: 236,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,811.58 : 437,200.32 = 171,617.70 : x
  2. Step 2: Convert to fraction form
    316,811.58/437,200.32 = 171,617.70/x
  3. Step 3: Cross multiply
    316,811.58x = 437,200.32 × 171,617.70
  4. Step 4: Simplify right side
    316,811.58x = 75,031,313,357.66
  5. Step 5: Solve for x
    x = 75,031,313,357.66/316,811.58
  6. Step 6: Final answer
    x = 236,832.61

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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.