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Finding the Fourth Proportional to 289,688.63, 399,682.28 and 182,365.79

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Solution

The fourth proportional to 289,688.63, 399,682.28 and 182,365.79 is: 251,609.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,688.63 : 399,682.28 = 182,365.79 : x
  2. Step 2: Convert to fraction form
    289,688.63/399,682.28 = 182,365.79/x
  3. Step 3: Cross multiply
    289,688.63x = 399,682.28 × 182,365.79
  4. Step 4: Simplify right side
    289,688.63x = 72,888,373,198.70
  5. Step 5: Solve for x
    x = 72,888,373,198.70/289,688.63
  6. Step 6: Final answer
    x = 251,609.37

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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.