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Finding the Fourth Proportional to 313,608.71, 432,758.70 and 170,365.68

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Solution

The fourth proportional to 313,608.71, 432,758.70 and 170,365.68 is: 235,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,608.71 : 432,758.70 = 170,365.68 : x
  2. Step 2: Convert to fraction form
    313,608.71/432,758.70 = 170,365.68/x
  3. Step 3: Cross multiply
    313,608.71x = 432,758.70 × 170,365.68
  4. Step 4: Simplify right side
    313,608.71x = 73,727,230,201.42
  5. Step 5: Solve for x
    x = 73,727,230,201.42/313,608.71
  6. Step 6: Final answer
    x = 235,093.05

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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.