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Finding the Fourth Proportional to 1,079.88, 1,495.88 and 1,058.01

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Solution

The fourth proportional to 1,079.88, 1,495.88 and 1,058.01 is: 1,465.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079.88 : 1,495.88 = 1,058.01 : x
  2. Step 2: Convert to fraction form
    1,079.88/1,495.88 = 1,058.01/x
  3. Step 3: Cross multiply
    1,079.88x = 1,495.88 × 1,058.01
  4. Step 4: Simplify right side
    1,079.88x = 1,582,650.71
  5. Step 5: Solve for x
    x = 1,582,650.71/1,079.88
  6. Step 6: Final answer
    x = 1,465.58

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.