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Finding the Fourth Proportional to 3,460.74, 5,190.33 and 995.01

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Solution

The fourth proportional to 3,460.74, 5,190.33 and 995.01 is: 1,492.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.74 : 5,190.33 = 995.01 : x
  2. Step 2: Convert to fraction form
    3,460.74/5,190.33 = 995.01/x
  3. Step 3: Cross multiply
    3,460.74x = 5,190.33 × 995.01
  4. Step 4: Simplify right side
    3,460.74x = 5,164,430.25
  5. Step 5: Solve for x
    x = 5,164,430.25/3,460.74
  6. Step 6: Final answer
    x = 1,492.29

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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.