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Finding the Fourth Proportional to 995,476.80, 1,493,220.60 and 247,522.80

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Solution

The fourth proportional to 995,476.80, 1,493,220.60 and 247,522.80 is: 371,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,476.80 : 1,493,220.60 = 247,522.80 : x
  2. Step 2: Convert to fraction form
    995,476.80/1,493,220.60 = 247,522.80/x
  3. Step 3: Cross multiply
    995,476.80x = 1,493,220.60 × 247,522.80
  4. Step 4: Simplify right side
    995,476.80x = 369,606,143,929.68
  5. Step 5: Solve for x
    x = 369,606,143,929.68/995,476.80
  6. Step 6: Final answer
    x = 371,285.54

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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.