Home / 957,940.80-1,321,967.52-528,236.16

Finding the Fourth Proportional to 957,940.80, 1,321,967.52 and 528,236.16

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Solution

The fourth proportional to 957,940.80, 1,321,967.52 and 528,236.16 is: 728,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,940.80 : 1,321,967.52 = 528,236.16 : x
  2. Step 2: Convert to fraction form
    957,940.80/1,321,967.52 = 528,236.16/x
  3. Step 3: Cross multiply
    957,940.80x = 1,321,967.52 × 528,236.16
  4. Step 4: Simplify right side
    957,940.80x = 698,311,046,409.52
  5. Step 5: Solve for x
    x = 698,311,046,409.52/957,940.80
  6. Step 6: Final answer
    x = 728,970.98

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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.