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Finding the Fourth Proportional to 446,793.72, 616,564.35 and 255,790.86

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Solution

The fourth proportional to 446,793.72, 616,564.35 and 255,790.86 is: 352,985.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,793.72 : 616,564.35 = 255,790.86 : x
  2. Step 2: Convert to fraction form
    446,793.72/616,564.35 = 255,790.86/x
  3. Step 3: Cross multiply
    446,793.72x = 616,564.35 × 255,790.86
  4. Step 4: Simplify right side
    446,793.72x = 157,711,525,331.84
  5. Step 5: Solve for x
    x = 157,711,525,331.84/446,793.72
  6. Step 6: Final answer
    x = 352,985.10

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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.