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Finding the Fourth Proportional to 574,940.26, 787,671.01 and 553,391.83

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Solution

The fourth proportional to 574,940.26, 787,671.01 and 553,391.83 is: 758,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,940.26 : 787,671.01 = 553,391.83 : x
  2. Step 2: Convert to fraction form
    574,940.26/787,671.01 = 553,391.83/x
  3. Step 3: Cross multiply
    574,940.26x = 787,671.01 × 553,391.83
  4. Step 4: Simplify right side
    574,940.26x = 435,890,701,661.85
  5. Step 5: Solve for x
    x = 435,890,701,661.85/574,940.26
  6. Step 6: Final answer
    x = 758,149.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.