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Finding the Fourth Proportional to 320,791.95, 442,803.50 and 184,880.16

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Solution

The fourth proportional to 320,791.95, 442,803.50 and 184,880.16 is: 255,198.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,791.95 : 442,803.50 = 184,880.16 : x
  2. Step 2: Convert to fraction form
    320,791.95/442,803.50 = 184,880.16/x
  3. Step 3: Cross multiply
    320,791.95x = 442,803.50 × 184,880.16
  4. Step 4: Simplify right side
    320,791.95x = 81,865,581,004.16
  5. Step 5: Solve for x
    x = 81,865,581,004.16/320,791.95
  6. Step 6: Final answer
    x = 255,198.36

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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.