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Finding the Fourth Proportional to 1,044.99, 1,442.03 and 603.18

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Solution

The fourth proportional to 1,044.99, 1,442.03 and 603.18 is: 832.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.99 : 1,442.03 = 603.18 : x
  2. Step 2: Convert to fraction form
    1,044.99/1,442.03 = 603.18/x
  3. Step 3: Cross multiply
    1,044.99x = 1,442.03 × 603.18
  4. Step 4: Simplify right side
    1,044.99x = 869,800.64
  5. Step 5: Solve for x
    x = 869,800.64/1,044.99
  6. Step 6: Final answer
    x = 832.35

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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.