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Finding the Fourth Proportional to 326,953.17, 451,180.98 and 190,999.71

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Solution

The fourth proportional to 326,953.17, 451,180.98 and 190,999.71 is: 263,571.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,953.17 : 451,180.98 = 190,999.71 : x
  2. Step 2: Convert to fraction form
    326,953.17/451,180.98 = 190,999.71/x
  3. Step 3: Cross multiply
    326,953.17x = 451,180.98 × 190,999.71
  4. Step 4: Simplify right side
    326,953.17x = 86,175,436,337.52
  5. Step 5: Solve for x
    x = 86,175,436,337.52/326,953.17
  6. Step 6: Final answer
    x = 263,571.19

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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.