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Finding the Fourth Proportional to 663,512.40, 995,910.12 and 627,548.40

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Solution

The fourth proportional to 663,512.40, 995,910.12 and 627,548.40 is: 941,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,512.40 : 995,910.12 = 627,548.40 : x
  2. Step 2: Convert to fraction form
    663,512.40/995,910.12 = 627,548.40/x
  3. Step 3: Cross multiply
    663,512.40x = 995,910.12 × 627,548.40
  4. Step 4: Simplify right side
    663,512.40x = 624,981,802,349.81
  5. Step 5: Solve for x
    x = 624,981,802,349.81/663,512.40
  6. Step 6: Final answer
    x = 941,929.35

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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.