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Finding the Fourth Proportional to 995,365.40, 1,493,048.10 and 330,517.40

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Solution

The fourth proportional to 995,365.40, 1,493,048.10 and 330,517.40 is: 495,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,365.40 : 1,493,048.10 = 330,517.40 : x
  2. Step 2: Convert to fraction form
    995,365.40/1,493,048.10 = 330,517.40/x
  3. Step 3: Cross multiply
    995,365.40x = 1,493,048.10 × 330,517.40
  4. Step 4: Simplify right side
    995,365.40x = 493,478,376,086.94
  5. Step 5: Solve for x
    x = 493,478,376,086.94/995,365.40
  6. Step 6: Final answer
    x = 495,776.10

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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.