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Finding the Fourth Proportional to 638,209.20, 957,313.80 and 598,843.20

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Solution

The fourth proportional to 638,209.20, 957,313.80 and 598,843.20 is: 898,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,209.20 : 957,313.80 = 598,843.20 : x
  2. Step 2: Convert to fraction form
    638,209.20/957,313.80 = 598,843.20/x
  3. Step 3: Cross multiply
    638,209.20x = 957,313.80 × 598,843.20
  4. Step 4: Simplify right side
    638,209.20x = 573,280,859,396.16
  5. Step 5: Solve for x
    x = 573,280,859,396.16/638,209.20
  6. Step 6: Final answer
    x = 898,264.80

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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.