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Finding the Fourth Proportional to 1,058.90, 1,461.21 and 593.06

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Solution

The fourth proportional to 1,058.90, 1,461.21 and 593.06 is: 818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.90 : 1,461.21 = 593.06 : x
  2. Step 2: Convert to fraction form
    1,058.90/1,461.21 = 593.06/x
  3. Step 3: Cross multiply
    1,058.90x = 1,461.21 × 593.06
  4. Step 4: Simplify right side
    1,058.90x = 866,585.20
  5. Step 5: Solve for x
    x = 866,585.20/1,058.90
  6. Step 6: Final answer
    x = 818.38

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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.