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Finding the Fourth Proportional to 316,029.44, 436,230.40 and 181,946.88

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Solution

The fourth proportional to 316,029.44, 436,230.40 and 181,946.88 is: 251,149.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,029.44 : 436,230.40 = 181,946.88 : x
  2. Step 2: Convert to fraction form
    316,029.44/436,230.40 = 181,946.88/x
  3. Step 3: Cross multiply
    316,029.44x = 436,230.40 × 181,946.88
  4. Step 4: Simplify right side
    316,029.44x = 79,370,760,241.15
  5. Step 5: Solve for x
    x = 79,370,760,241.15/316,029.44
  6. Step 6: Final answer
    x = 251,149.89

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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.