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Finding the Fourth Proportional to 598,615.56, 825,416.46 and 489,382.20

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Solution

The fourth proportional to 598,615.56, 825,416.46 and 489,382.20 is: 674,797.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,615.56 : 825,416.46 = 489,382.20 : x
  2. Step 2: Convert to fraction form
    598,615.56/825,416.46 = 489,382.20/x
  3. Step 3: Cross multiply
    598,615.56x = 825,416.46 × 489,382.20
  4. Step 4: Simplify right side
    598,615.56x = 403,944,123,111.01
  5. Step 5: Solve for x
    x = 403,944,123,111.01/598,615.56
  6. Step 6: Final answer
    x = 674,797.23

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Double scale
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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.