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Finding the Fourth Proportional to 1,058.54, 1,576.56 and 1,002.38

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Solution

The fourth proportional to 1,058.54, 1,576.56 and 1,002.38 is: 1,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,058.54 : 1,576.56 = 1,002.38 : x
  2. Step 2: Convert to fraction form
    1,058.54/1,576.56 = 1,002.38/x
  3. Step 3: Cross multiply
    1,058.54x = 1,576.56 × 1,002.38
  4. Step 4: Simplify right side
    1,058.54x = 1,580,307.20
  5. Step 5: Solve for x
    x = 1,580,307.20/1,058.54
  6. Step 6: Final answer
    x = 1,492.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.