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Finding the Fourth Proportional to 574,639.69, 861,368.11 and 254,942.12

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Solution

The fourth proportional to 574,639.69, 861,368.11 and 254,942.12 is: 382,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,639.69 : 861,368.11 = 254,942.12 : x
  2. Step 2: Convert to fraction form
    574,639.69/861,368.11 = 254,942.12/x
  3. Step 3: Cross multiply
    574,639.69x = 861,368.11 × 254,942.12
  4. Step 4: Simplify right side
    574,639.69x = 219,599,012,442.81
  5. Step 5: Solve for x
    x = 219,599,012,442.81/574,639.69
  6. Step 6: Final answer
    x = 382,150.79

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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.