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Finding the Fourth Proportional to 325,554.40, 488,284.80 and 125,968.96

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Solution

The fourth proportional to 325,554.40, 488,284.80 and 125,968.96 is: 188,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,554.40 : 488,284.80 = 125,968.96 : x
  2. Step 2: Convert to fraction form
    325,554.40/488,284.80 = 125,968.96/x
  3. Step 3: Cross multiply
    325,554.40x = 488,284.80 × 125,968.96
  4. Step 4: Simplify right side
    325,554.40x = 61,508,728,439.81
  5. Step 5: Solve for x
    x = 61,508,728,439.81/325,554.40
  6. Step 6: Final answer
    x = 188,935.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.