Home / 964,181.87-1,330,584.63-528,640.21

Finding the Fourth Proportional to 964,181.87, 1,330,584.63 and 528,640.21

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Solution

The fourth proportional to 964,181.87, 1,330,584.63 and 528,640.21 is: 729,530.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    964,181.87 : 1,330,584.63 = 528,640.21 : x
  2. Step 2: Convert to fraction form
    964,181.87/1,330,584.63 = 528,640.21/x
  3. Step 3: Cross multiply
    964,181.87x = 1,330,584.63 × 528,640.21
  4. Step 4: Simplify right side
    964,181.87x = 703,400,538,225.97
  5. Step 5: Solve for x
    x = 703,400,538,225.97/964,181.87
  6. Step 6: Final answer
    x = 729,530.97

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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.