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Finding the Fourth Proportional to 967.20, 1,334.72 and 594.20

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Solution

The fourth proportional to 967.20, 1,334.72 and 594.20 is: 819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.20 : 1,334.72 = 594.20 : x
  2. Step 2: Convert to fraction form
    967.20/1,334.72 = 594.20/x
  3. Step 3: Cross multiply
    967.20x = 1,334.72 × 594.20
  4. Step 4: Simplify right side
    967.20x = 793,080.98
  5. Step 5: Solve for x
    x = 793,080.98/967.20
  6. Step 6: Final answer
    x = 819.98

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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.