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Finding the Fourth Proportional to 598,918.80, 898,378.20 and 575,299.20

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Solution

The fourth proportional to 598,918.80, 898,378.20 and 575,299.20 is: 862,948.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,918.80 : 898,378.20 = 575,299.20 : x
  2. Step 2: Convert to fraction form
    598,918.80/898,378.20 = 575,299.20/x
  3. Step 3: Cross multiply
    598,918.80x = 898,378.20 × 575,299.20
  4. Step 4: Simplify right side
    598,918.80x = 516,836,259,757.44
  5. Step 5: Solve for x
    x = 516,836,259,757.44/598,918.80
  6. Step 6: Final answer
    x = 862,948.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.