Home / 656,584.56-906,086.67-354,778.56

Finding the Fourth Proportional to 656,584.56, 906,086.67 and 354,778.56

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Solution

The fourth proportional to 656,584.56, 906,086.67 and 354,778.56 is: 489,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,584.56 : 906,086.67 = 354,778.56 : x
  2. Step 2: Convert to fraction form
    656,584.56/906,086.67 = 354,778.56/x
  3. Step 3: Cross multiply
    656,584.56x = 906,086.67 × 354,778.56
  4. Step 4: Simplify right side
    656,584.56x = 321,460,122,687.38
  5. Step 5: Solve for x
    x = 321,460,122,687.38/656,584.56
  6. Step 6: Final answer
    x = 489,594.40

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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.