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Finding the Fourth Proportional to 1,374.26, 1,895.04 and 955.08

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Solution

The fourth proportional to 1,374.26, 1,895.04 and 955.08 is: 1,317.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.26 : 1,895.04 = 955.08 : x
  2. Step 2: Convert to fraction form
    1,374.26/1,895.04 = 955.08/x
  3. Step 3: Cross multiply
    1,374.26x = 1,895.04 × 955.08
  4. Step 4: Simplify right side
    1,374.26x = 1,809,914.80
  5. Step 5: Solve for x
    x = 1,809,914.80/1,374.26
  6. Step 6: Final answer
    x = 1,317.02

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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.