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Finding the Fourth Proportional to 973.12, 1,342.56 and 594.88

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Solution

The fourth proportional to 973.12, 1,342.56 and 594.88 is: 820.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    973.12 : 1,342.56 = 594.88 : x
  2. Step 2: Convert to fraction form
    973.12/1,342.56 = 594.88/x
  3. Step 3: Cross multiply
    973.12x = 1,342.56 × 594.88
  4. Step 4: Simplify right side
    973.12x = 798,662.09
  5. Step 5: Solve for x
    x = 798,662.09/973.12
  6. Step 6: Final answer
    x = 820.72

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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.