Home / 957,985.96-1,321,990.32-528,284.20

Finding the Fourth Proportional to 957,985.96, 1,321,990.32 and 528,284.20

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Solution

The fourth proportional to 957,985.96, 1,321,990.32 and 528,284.20 is: 729,015.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,985.96 : 1,321,990.32 = 528,284.20 : x
  2. Step 2: Convert to fraction form
    957,985.96/1,321,990.32 = 528,284.20/x
  3. Step 3: Cross multiply
    957,985.96x = 1,321,990.32 × 528,284.20
  4. Step 4: Simplify right side
    957,985.96x = 698,386,598,608.94
  5. Step 5: Solve for x
    x = 698,386,598,608.94/957,985.96
  6. Step 6: Final answer
    x = 729,015.48

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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.