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Finding the Fourth Proportional to 3,460.17, 5,190.46 and 994.93

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Solution

The fourth proportional to 3,460.17, 5,190.46 and 994.93 is: 1,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,460.17 : 5,190.46 = 994.93 : x
  2. Step 2: Convert to fraction form
    3,460.17/5,190.46 = 994.93/x
  3. Step 3: Cross multiply
    3,460.17x = 5,190.46 × 994.93
  4. Step 4: Simplify right side
    3,460.17x = 5,164,144.37
  5. Step 5: Solve for x
    x = 5,164,144.37/3,460.17
  6. Step 6: Final answer
    x = 1,492.45

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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.