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Finding the Fourth Proportional to 328,453.39, 492,903.64 and 118,112.59

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Solution

The fourth proportional to 328,453.39, 492,903.64 and 118,112.59 is: 177,249.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,453.39 : 492,903.64 = 118,112.59 : x
  2. Step 2: Convert to fraction form
    328,453.39/492,903.64 = 118,112.59/x
  3. Step 3: Cross multiply
    328,453.39x = 492,903.64 × 118,112.59
  4. Step 4: Simplify right side
    328,453.39x = 58,218,123,076.31
  5. Step 5: Solve for x
    x = 58,218,123,076.31/328,453.39
  6. Step 6: Final answer
    x = 177,249.27

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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.