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Finding the Fourth Proportional to 2,368.59, 3,268.74 and 1,320.63

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Solution

The fourth proportional to 2,368.59, 3,268.74 and 1,320.63 is: 1,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,368.59 : 3,268.74 = 1,320.63 : x
  2. Step 2: Convert to fraction form
    2,368.59/3,268.74 = 1,320.63/x
  3. Step 3: Cross multiply
    2,368.59x = 3,268.74 × 1,320.63
  4. Step 4: Simplify right side
    2,368.59x = 4,316,796.11
  5. Step 5: Solve for x
    x = 4,316,796.11/2,368.59
  6. Step 6: Final answer
    x = 1,822.52

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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.