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Finding the Fourth Proportional to 358,841.84, 494,869.11 and 261,892.13

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Solution

The fourth proportional to 358,841.84, 494,869.11 and 261,892.13 is: 361,168.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,841.84 : 494,869.11 = 261,892.13 : x
  2. Step 2: Convert to fraction form
    358,841.84/494,869.11 = 261,892.13/x
  3. Step 3: Cross multiply
    358,841.84x = 494,869.11 × 261,892.13
  4. Step 4: Simplify right side
    358,841.84x = 129,602,321,832.66
  5. Step 5: Solve for x
    x = 129,602,321,832.66/358,841.84
  6. Step 6: Final answer
    x = 361,168.37

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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.