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Finding the Fourth Proportional to 1,058.38, 1,461.99 and 1,051.09

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Solution

The fourth proportional to 1,058.38, 1,461.99 and 1,051.09 is: 1,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.38 : 1,461.99 = 1,051.09 : x
  2. Step 2: Convert to fraction form
    1,058.38/1,461.99 = 1,051.09/x
  3. Step 3: Cross multiply
    1,058.38x = 1,461.99 × 1,051.09
  4. Step 4: Simplify right side
    1,058.38x = 1,536,683.07
  5. Step 5: Solve for x
    x = 1,536,683.07/1,058.38
  6. Step 6: Final answer
    x = 1,451.92

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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.