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Finding the Fourth Proportional to 2,923.57, 4,386.03 and 843.60

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Solution

The fourth proportional to 2,923.57, 4,386.03 and 843.60 is: 1,265.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.57 : 4,386.03 = 843.60 : x
  2. Step 2: Convert to fraction form
    2,923.57/4,386.03 = 843.60/x
  3. Step 3: Cross multiply
    2,923.57x = 4,386.03 × 843.60
  4. Step 4: Simplify right side
    2,923.57x = 3,700,054.91
  5. Step 5: Solve for x
    x = 3,700,054.91/2,923.57
  6. Step 6: Final answer
    x = 1,265.59

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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.