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Finding the Fourth Proportional to 328,313.25, 492,484.97 and 100,592.56

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Solution

The fourth proportional to 328,313.25, 492,484.97 and 100,592.56 is: 150,893.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,313.25 : 492,484.97 = 100,592.56 : x
  2. Step 2: Convert to fraction form
    328,313.25/492,484.97 = 100,592.56/x
  3. Step 3: Cross multiply
    328,313.25x = 492,484.97 × 100,592.56
  4. Step 4: Simplify right side
    328,313.25x = 49,540,323,893.82
  5. Step 5: Solve for x
    x = 49,540,323,893.82/328,313.25
  6. Step 6: Final answer
    x = 150,893.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.