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Finding the Fourth Proportional to 326,927.52, 490,449.60 and 127,356.48

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Solution

The fourth proportional to 326,927.52, 490,449.60 and 127,356.48 is: 191,057.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,927.52 : 490,449.60 = 127,356.48 : x
  2. Step 2: Convert to fraction form
    326,927.52/490,449.60 = 127,356.48/x
  3. Step 3: Cross multiply
    326,927.52x = 490,449.60 × 127,356.48
  4. Step 4: Simplify right side
    326,927.52x = 62,461,934,673.41
  5. Step 5: Solve for x
    x = 62,461,934,673.41/326,927.52
  6. Step 6: Final answer
    x = 191,057.44

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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.