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Finding the Fourth Proportional to 321,089.40, 443,110.56 and 183,265.58

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Solution

The fourth proportional to 321,089.40, 443,110.56 and 183,265.58 is: 252,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,089.40 : 443,110.56 = 183,265.58 : x
  2. Step 2: Convert to fraction form
    321,089.40/443,110.56 = 183,265.58/x
  3. Step 3: Cross multiply
    321,089.40x = 443,110.56 × 183,265.58
  4. Step 4: Simplify right side
    321,089.40x = 81,206,913,782.52
  5. Step 5: Solve for x
    x = 81,206,913,782.52/321,089.40
  6. Step 6: Final answer
    x = 252,910.60

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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.