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Finding the Fourth Proportional to 316,788, 437,168.24 and 173,550.84

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Solution

The fourth proportional to 316,788, 437,168.24 and 173,550.84 is: 239,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,788 : 437,168.24 = 173,550.84 : x
  2. Step 2: Convert to fraction form
    316,788/437,168.24 = 173,550.84/x
  3. Step 3: Cross multiply
    316,788x = 437,168.24 × 173,550.84
  4. Step 4: Simplify right side
    316,788x = 75,870,915,273.32
  5. Step 5: Solve for x
    x = 75,870,915,273.32/316,788
  6. Step 6: Final answer
    x = 239,500.60

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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.