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Finding the Fourth Proportional to 1,037.64, 1,431.91 and 595.59

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Solution

The fourth proportional to 1,037.64, 1,431.91 and 595.59 is: 821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,037.64 : 1,431.91 = 595.59 : x
  2. Step 2: Convert to fraction form
    1,037.64/1,431.91 = 595.59/x
  3. Step 3: Cross multiply
    1,037.64x = 1,431.91 × 595.59
  4. Step 4: Simplify right side
    1,037.64x = 852,831.28
  5. Step 5: Solve for x
    x = 852,831.28/1,037.64
  6. Step 6: Final answer
    x = 821.90

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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.