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Finding the Fourth Proportional to 286,651.36, 395,755.92 and 184,712.80

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Solution

The fourth proportional to 286,651.36, 395,755.92 and 184,712.80 is: 255,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,651.36 : 395,755.92 = 184,712.80 : x
  2. Step 2: Convert to fraction form
    286,651.36/395,755.92 = 184,712.80/x
  3. Step 3: Cross multiply
    286,651.36x = 395,755.92 × 184,712.80
  4. Step 4: Simplify right side
    286,651.36x = 73,101,184,099.78
  5. Step 5: Solve for x
    x = 73,101,184,099.78/286,651.36
  6. Step 6: Final answer
    x = 255,017.75

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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.