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Finding the Fourth Proportional to 1,037.36, 1,431.54 and 595.41

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Solution

The fourth proportional to 1,037.36, 1,431.54 and 595.41 is: 821.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.36 : 1,431.54 = 595.41 : x
  2. Step 2: Convert to fraction form
    1,037.36/1,431.54 = 595.41/x
  3. Step 3: Cross multiply
    1,037.36x = 1,431.54 × 595.41
  4. Step 4: Simplify right side
    1,037.36x = 852,353.23
  5. Step 5: Solve for x
    x = 852,353.23/1,037.36
  6. Step 6: Final answer
    x = 821.66

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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.