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Finding the Fourth Proportional to 289,177.53, 399,209.82 and 181,806.76

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Solution

The fourth proportional to 289,177.53, 399,209.82 and 181,806.76 is: 250,984.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,177.53 : 399,209.82 = 181,806.76 : x
  2. Step 2: Convert to fraction form
    289,177.53/399,209.82 = 181,806.76/x
  3. Step 3: Cross multiply
    289,177.53x = 399,209.82 × 181,806.76
  4. Step 4: Simplify right side
    289,177.53x = 72,579,043,751.62
  5. Step 5: Solve for x
    x = 72,579,043,751.62/289,177.53
  6. Step 6: Final answer
    x = 250,984.39

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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.