Home / 957,942.80-1,321,970.28-528,238.16

Finding the Fourth Proportional to 957,942.80, 1,321,970.28 and 528,238.16

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Solution

The fourth proportional to 957,942.80, 1,321,970.28 and 528,238.16 is: 728,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,942.80 : 1,321,970.28 = 528,238.16 : x
  2. Step 2: Convert to fraction form
    957,942.80/1,321,970.28 = 528,238.16/x
  3. Step 3: Cross multiply
    957,942.80x = 1,321,970.28 × 528,238.16
  4. Step 4: Simplify right side
    957,942.80x = 698,315,148,281.89
  5. Step 5: Solve for x
    x = 698,315,148,281.89/957,942.80
  6. Step 6: Final answer
    x = 728,973.74

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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.