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Finding the Fourth Proportional to 1,043.98, 1,440.75 and 595.98

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Solution

The fourth proportional to 1,043.98, 1,440.75 and 595.98 is: 822.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,043.98 : 1,440.75 = 595.98 : x
  2. Step 2: Convert to fraction form
    1,043.98/1,440.75 = 595.98/x
  3. Step 3: Cross multiply
    1,043.98x = 1,440.75 × 595.98
  4. Step 4: Simplify right side
    1,043.98x = 858,661.79
  5. Step 5: Solve for x
    x = 858,661.79/1,043.98
  6. Step 6: Final answer
    x = 822.49

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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.