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Finding the Fourth Proportional to 325,554.90, 488,285.55 and 125,969.46

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Solution

The fourth proportional to 325,554.90, 488,285.55 and 125,969.46 is: 188,936.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,554.90 : 488,285.55 = 125,969.46 : x
  2. Step 2: Convert to fraction form
    325,554.90/488,285.55 = 125,969.46/x
  3. Step 3: Cross multiply
    325,554.90x = 488,285.55 × 125,969.46
  4. Step 4: Simplify right side
    325,554.90x = 61,509,067,059.30
  5. Step 5: Solve for x
    x = 61,509,067,059.30/325,554.90
  6. Step 6: Final answer
    x = 188,936.08

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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.