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Finding the Fourth Proportional to 922.52, 1,373.83 and 917.24

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Solution

The fourth proportional to 922.52, 1,373.83 and 917.24 is: 1,365.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    922.52 : 1,373.83 = 917.24 : x
  2. Step 2: Convert to fraction form
    922.52/1,373.83 = 917.24/x
  3. Step 3: Cross multiply
    922.52x = 1,373.83 × 917.24
  4. Step 4: Simplify right side
    922.52x = 1,260,131.83
  5. Step 5: Solve for x
    x = 1,260,131.83/922.52
  6. Step 6: Final answer
    x = 1,365.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.