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Finding the Fourth Proportional to 598,809.20, 896,901.60 and 317,998.40

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Solution

The fourth proportional to 598,809.20, 896,901.60 and 317,998.40 is: 476,300.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,809.20 : 896,901.60 = 317,998.40 : x
  2. Step 2: Convert to fraction form
    598,809.20/896,901.60 = 317,998.40/x
  3. Step 3: Cross multiply
    598,809.20x = 896,901.60 × 317,998.40
  4. Step 4: Simplify right side
    598,809.20x = 285,213,273,757.44
  5. Step 5: Solve for x
    x = 285,213,273,757.44/598,809.20
  6. Step 6: Final answer
    x = 476,300.75

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Double scale
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Similar ratio
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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.