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Finding the Fourth Proportional to 330,901.76, 456,541.44 and 187,650.56

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Solution

The fourth proportional to 330,901.76, 456,541.44 and 187,650.56 is: 258,899.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,901.76 : 456,541.44 = 187,650.56 : x
  2. Step 2: Convert to fraction form
    330,901.76/456,541.44 = 187,650.56/x
  3. Step 3: Cross multiply
    330,901.76x = 456,541.44 × 187,650.56
  4. Step 4: Simplify right side
    330,901.76x = 85,670,256,879.21
  5. Step 5: Solve for x
    x = 85,670,256,879.21/330,901.76
  6. Step 6: Final answer
    x = 258,899.37

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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.