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Finding the Fourth Proportional to 940.37, 1,298.22 and 567.44

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Solution

The fourth proportional to 940.37, 1,298.22 and 567.44 is: 783.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    940.37 : 1,298.22 = 567.44 : x
  2. Step 2: Convert to fraction form
    940.37/1,298.22 = 567.44/x
  3. Step 3: Cross multiply
    940.37x = 1,298.22 × 567.44
  4. Step 4: Simplify right side
    940.37x = 736,661.96
  5. Step 5: Solve for x
    x = 736,661.96/940.37
  6. Step 6: Final answer
    x = 783.37

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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.