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Finding the Fourth Proportional to 1,888.02, 2,605.49 and 1,048.86

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Solution

The fourth proportional to 1,888.02, 2,605.49 and 1,048.86 is: 1,447.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.02 : 2,605.49 = 1,048.86 : x
  2. Step 2: Convert to fraction form
    1,888.02/2,605.49 = 1,048.86/x
  3. Step 3: Cross multiply
    1,888.02x = 2,605.49 × 1,048.86
  4. Step 4: Simplify right side
    1,888.02x = 2,732,794.24
  5. Step 5: Solve for x
    x = 2,732,794.24/1,888.02
  6. Step 6: Final answer
    x = 1,447.44

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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.