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Finding the Fourth Proportional to 1,068.98, 1,475.15 and 603.23

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Solution

The fourth proportional to 1,068.98, 1,475.15 and 603.23 is: 832.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,068.98 : 1,475.15 = 603.23 : x
  2. Step 2: Convert to fraction form
    1,068.98/1,475.15 = 603.23/x
  3. Step 3: Cross multiply
    1,068.98x = 1,475.15 × 603.23
  4. Step 4: Simplify right side
    1,068.98x = 889,844.34
  5. Step 5: Solve for x
    x = 889,844.34/1,068.98
  6. Step 6: Final answer
    x = 832.43

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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.