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Finding the Fourth Proportional to 1,045.58, 1,442.91 and 573.52

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Solution

The fourth proportional to 1,045.58, 1,442.91 and 573.52 is: 791.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.58 : 1,442.91 = 573.52 : x
  2. Step 2: Convert to fraction form
    1,045.58/1,442.91 = 573.52/x
  3. Step 3: Cross multiply
    1,045.58x = 1,442.91 × 573.52
  4. Step 4: Simplify right side
    1,045.58x = 827,536.29
  5. Step 5: Solve for x
    x = 827,536.29/1,045.58
  6. Step 6: Final answer
    x = 791.46

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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.