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Finding the Fourth Proportional to 293,891.10, 440,836.65 and 188,915.10

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Solution

The fourth proportional to 293,891.10, 440,836.65 and 188,915.10 is: 283,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,891.10 : 440,836.65 = 188,915.10 : x
  2. Step 2: Convert to fraction form
    293,891.10/440,836.65 = 188,915.10/x
  3. Step 3: Cross multiply
    293,891.10x = 440,836.65 × 188,915.10
  4. Step 4: Simplify right side
    293,891.10x = 83,280,699,818.42
  5. Step 5: Solve for x
    x = 83,280,699,818.42/293,891.10
  6. Step 6: Final answer
    x = 283,372.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.