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Finding the Fourth Proportional to 320,191.88, 441,869.46 and 186,055.88

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Solution

The fourth proportional to 320,191.88, 441,869.46 and 186,055.88 is: 256,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,191.88 : 441,869.46 = 186,055.88 : x
  2. Step 2: Convert to fraction form
    320,191.88/441,869.46 = 186,055.88/x
  3. Step 3: Cross multiply
    320,191.88x = 441,869.46 × 186,055.88
  4. Step 4: Simplify right side
    320,191.88x = 82,212,411,225.42
  5. Step 5: Solve for x
    x = 82,212,411,225.42/320,191.88
  6. Step 6: Final answer
    x = 256,759.83

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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.