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Finding the Fourth Proportional to 496,626.59, 685,338.37 and 292,686.21

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Solution

The fourth proportional to 496,626.59, 685,338.37 and 292,686.21 is: 403,903.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,626.59 : 685,338.37 = 292,686.21 : x
  2. Step 2: Convert to fraction form
    496,626.59/685,338.37 = 292,686.21/x
  3. Step 3: Cross multiply
    496,626.59x = 685,338.37 × 292,686.21
  4. Step 4: Simplify right side
    496,626.59x = 200,589,089,351.16
  5. Step 5: Solve for x
    x = 200,589,089,351.16/496,626.59
  6. Step 6: Final answer
    x = 403,903.24

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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.