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Finding the Fourth Proportional to 1,697.35, 2,342.44 and 951.55

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Solution

The fourth proportional to 1,697.35, 2,342.44 and 951.55 is: 1,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,697.35 : 2,342.44 = 951.55 : x
  2. Step 2: Convert to fraction form
    1,697.35/2,342.44 = 951.55/x
  3. Step 3: Cross multiply
    1,697.35x = 2,342.44 × 951.55
  4. Step 4: Simplify right side
    1,697.35x = 2,228,946.40
  5. Step 5: Solve for x
    x = 2,228,946.40/1,697.35
  6. Step 6: Final answer
    x = 1,313.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.