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Finding the Fourth Proportional to 320,376.52, 442,152.42 and 184,415.56

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Solution

The fourth proportional to 320,376.52, 442,152.42 and 184,415.56 is: 254,512.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,376.52 : 442,152.42 = 184,415.56 : x
  2. Step 2: Convert to fraction form
    320,376.52/442,152.42 = 184,415.56/x
  3. Step 3: Cross multiply
    320,376.52x = 442,152.42 × 184,415.56
  4. Step 4: Simplify right side
    320,376.52x = 81,539,786,139.66
  5. Step 5: Solve for x
    x = 81,539,786,139.66/320,376.52
  6. Step 6: Final answer
    x = 254,512.37

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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.