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Finding the Fourth Proportional to 1,652.95, 2,480.46 and 923.05

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Solution

The fourth proportional to 1,652.95, 2,480.46 and 923.05 is: 1,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.95 : 2,480.46 = 923.05 : x
  2. Step 2: Convert to fraction form
    1,652.95/2,480.46 = 923.05/x
  3. Step 3: Cross multiply
    1,652.95x = 2,480.46 × 923.05
  4. Step 4: Simplify right side
    1,652.95x = 2,289,588.60
  5. Step 5: Solve for x
    x = 2,289,588.60/1,652.95
  6. Step 6: Final answer
    x = 1,385.15

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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.