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Finding the Fourth Proportional to 1,358.86, 1,875.23 and 737.86

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Solution

The fourth proportional to 1,358.86, 1,875.23 and 737.86 is: 1,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358.86 : 1,875.23 = 737.86 : x
  2. Step 2: Convert to fraction form
    1,358.86/1,875.23 = 737.86/x
  3. Step 3: Cross multiply
    1,358.86x = 1,875.23 × 737.86
  4. Step 4: Simplify right side
    1,358.86x = 1,383,653.04
  5. Step 5: Solve for x
    x = 1,383,653.04/1,358.86
  6. Step 6: Final answer
    x = 1,018.25

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.