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Finding the Fourth Proportional to 316,286.83, 436,462.99 and 189,032.59

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Solution

The fourth proportional to 316,286.83, 436,462.99 and 189,032.59 is: 260,857.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,286.83 : 436,462.99 = 189,032.59 : x
  2. Step 2: Convert to fraction form
    316,286.83/436,462.99 = 189,032.59/x
  3. Step 3: Cross multiply
    316,286.83x = 436,462.99 × 189,032.59
  4. Step 4: Simplify right side
    316,286.83x = 82,505,729,438.84
  5. Step 5: Solve for x
    x = 82,505,729,438.84/316,286.83
  6. Step 6: Final answer
    x = 260,857.30

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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.