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Finding the Fourth Proportional to 1,058.48, 1,587.96 and 571.52

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Solution

The fourth proportional to 1,058.48, 1,587.96 and 571.52 is: 857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.48 : 1,587.96 = 571.52 : x
  2. Step 2: Convert to fraction form
    1,058.48/1,587.96 = 571.52/x
  3. Step 3: Cross multiply
    1,058.48x = 1,587.96 × 571.52
  4. Step 4: Simplify right side
    1,058.48x = 907,550.90
  5. Step 5: Solve for x
    x = 907,550.90/1,058.48
  6. Step 6: Final answer
    x = 857.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.