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Finding the Fourth Proportional to 446,751.69, 616,518.71 and 255,766.51

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Solution

The fourth proportional to 446,751.69, 616,518.71 and 255,766.51 is: 352,958.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,751.69 : 616,518.71 = 255,766.51 : x
  2. Step 2: Convert to fraction form
    446,751.69/616,518.71 = 255,766.51/x
  3. Step 3: Cross multiply
    446,751.69x = 616,518.71 × 255,766.51
  4. Step 4: Simplify right side
    446,751.69x = 157,684,838,806.40
  5. Step 5: Solve for x
    x = 157,684,838,806.40/446,751.69
  6. Step 6: Final answer
    x = 352,958.57

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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.