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Finding the Fourth Proportional to 289,898.69, 400,079.11 and 167,396.24

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Solution

The fourth proportional to 289,898.69, 400,079.11 and 167,396.24 is: 231,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,898.69 : 400,079.11 = 167,396.24 : x
  2. Step 2: Convert to fraction form
    289,898.69/400,079.11 = 167,396.24/x
  3. Step 3: Cross multiply
    289,898.69x = 400,079.11 × 167,396.24
  4. Step 4: Simplify right side
    289,898.69x = 66,971,737,925.59
  5. Step 5: Solve for x
    x = 66,971,737,925.59/289,898.69
  6. Step 6: Final answer
    x = 231,017.73

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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.