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Finding the Fourth Proportional to 1,477, 2,038.26 and 925

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Solution

The fourth proportional to 1,477, 2,038.26 and 925 is: 1,276.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,477 : 2,038.26 = 925 : x
  2. Step 2: Convert to fraction form
    1,477/2,038.26 = 925/x
  3. Step 3: Cross multiply
    1,477x = 2,038.26 × 925
  4. Step 4: Simplify right side
    1,477x = 1,885,390.50
  5. Step 5: Solve for x
    x = 1,885,390.50/1,477
  6. Step 6: Final answer
    x = 1,276.50

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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.