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Finding the Fourth Proportional to 1,444.94, 1,992.90 and 1,048.09

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Solution

The fourth proportional to 1,444.94, 1,992.90 and 1,048.09 is: 1,445.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.94 : 1,992.90 = 1,048.09 : x
  2. Step 2: Convert to fraction form
    1,444.94/1,992.90 = 1,048.09/x
  3. Step 3: Cross multiply
    1,444.94x = 1,992.90 × 1,048.09
  4. Step 4: Simplify right side
    1,444.94x = 2,088,741.25
  5. Step 5: Solve for x
    x = 2,088,741.25/1,444.94
  6. Step 6: Final answer
    x = 1,445.56

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1.5x scale

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.