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Finding the Fourth Proportional to 320,797.88, 442,811.75 and 184,886.12

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Solution

The fourth proportional to 320,797.88, 442,811.75 and 184,886.12 is: 255,206.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,797.88 : 442,811.75 = 184,886.12 : x
  2. Step 2: Convert to fraction form
    320,797.88/442,811.75 = 184,886.12/x
  3. Step 3: Cross multiply
    320,797.88x = 442,811.75 × 184,886.12
  4. Step 4: Simplify right side
    320,797.88x = 81,869,745,423.48
  5. Step 5: Solve for x
    x = 81,869,745,423.48/320,797.88
  6. Step 6: Final answer
    x = 255,206.63

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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.