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Finding the Fourth Proportional to 318,371.58, 439,415.28 and 182,496.60

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Solution

The fourth proportional to 318,371.58, 439,415.28 and 182,496.60 is: 251,881.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,371.58 : 439,415.28 = 182,496.60 : x
  2. Step 2: Convert to fraction form
    318,371.58/439,415.28 = 182,496.60/x
  3. Step 3: Cross multiply
    318,371.58x = 439,415.28 × 182,496.60
  4. Step 4: Simplify right side
    318,371.58x = 80,191,794,588.05
  5. Step 5: Solve for x
    x = 80,191,794,588.05/318,371.58
  6. Step 6: Final answer
    x = 251,881.13

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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.