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Finding the Fourth Proportional to 308,645.30, 426,076.13 and 232,193.57

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Solution

The fourth proportional to 308,645.30, 426,076.13 and 232,193.57 is: 320,536.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,645.30 : 426,076.13 = 232,193.57 : x
  2. Step 2: Convert to fraction form
    308,645.30/426,076.13 = 232,193.57/x
  3. Step 3: Cross multiply
    308,645.30x = 426,076.13 × 232,193.57
  4. Step 4: Simplify right side
    308,645.30x = 98,932,139,362.16
  5. Step 5: Solve for x
    x = 98,932,139,362.16/308,645.30
  6. Step 6: Final answer
    x = 320,536.68

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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.