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Finding the Fourth Proportional to 526,362.09, 789,535.80 and 126,999.51

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Solution

The fourth proportional to 526,362.09, 789,535.80 and 126,999.51 is: 190,497.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,362.09 : 789,535.80 = 126,999.51 : x
  2. Step 2: Convert to fraction form
    526,362.09/789,535.80 = 126,999.51/x
  3. Step 3: Cross multiply
    526,362.09x = 789,535.80 × 126,999.51
  4. Step 4: Simplify right side
    526,362.09x = 100,270,659,727.46
  5. Step 5: Solve for x
    x = 100,270,659,727.46/526,362.09
  6. Step 6: Final answer
    x = 190,497.50

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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.