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Finding the Fourth Proportional to 621,594.45, 857,288.58 and 366,699.60

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Solution

The fourth proportional to 621,594.45, 857,288.58 and 366,699.60 is: 505,743.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,594.45 : 857,288.58 = 366,699.60 : x
  2. Step 2: Convert to fraction form
    621,594.45/857,288.58 = 366,699.60/x
  3. Step 3: Cross multiply
    621,594.45x = 857,288.58 × 366,699.60
  4. Step 4: Simplify right side
    621,594.45x = 314,367,379,370.57
  5. Step 5: Solve for x
    x = 314,367,379,370.57/621,594.45
  6. Step 6: Final answer
    x = 505,743.54

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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.