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Finding the Fourth Proportional to 320,607.48, 442,399.86 and 184,685.88

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Solution

The fourth proportional to 320,607.48, 442,399.86 and 184,685.88 is: 254,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,607.48 : 442,399.86 = 184,685.88 : x
  2. Step 2: Convert to fraction form
    320,607.48/442,399.86 = 184,685.88/x
  3. Step 3: Cross multiply
    320,607.48x = 442,399.86 × 184,685.88
  4. Step 4: Simplify right side
    320,607.48x = 81,705,007,455.98
  5. Step 5: Solve for x
    x = 81,705,007,455.98/320,607.48
  6. Step 6: Final answer
    x = 254,844.36

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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.