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Finding the Fourth Proportional to 1,669.34, 2,303.60 and 923.26

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Solution

The fourth proportional to 1,669.34, 2,303.60 and 923.26 is: 1,274.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.34 : 2,303.60 = 923.26 : x
  2. Step 2: Convert to fraction form
    1,669.34/2,303.60 = 923.26/x
  3. Step 3: Cross multiply
    1,669.34x = 2,303.60 × 923.26
  4. Step 4: Simplify right side
    1,669.34x = 2,126,811.80
  5. Step 5: Solve for x
    x = 2,126,811.80/1,669.34
  6. Step 6: Final answer
    x = 1,274.04

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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.