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Finding the Fourth Proportional to 325,085.64, 448,437.58 and 189,104.28

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Solution

The fourth proportional to 325,085.64, 448,437.58 and 189,104.28 is: 260,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,085.64 : 448,437.58 = 189,104.28 : x
  2. Step 2: Convert to fraction form
    325,085.64/448,437.58 = 189,104.28/x
  3. Step 3: Cross multiply
    325,085.64x = 448,437.58 × 189,104.28
  4. Step 4: Simplify right side
    325,085.64x = 84,801,465,690.84
  5. Step 5: Solve for x
    x = 84,801,465,690.84/325,085.64
  6. Step 6: Final answer
    x = 260,858.85

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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.