Home / 957,983.96-1,321,987.56-528,282.20

Finding the Fourth Proportional to 957,983.96, 1,321,987.56 and 528,282.20

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Solution

The fourth proportional to 957,983.96, 1,321,987.56 and 528,282.20 is: 729,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,983.96 : 1,321,987.56 = 528,282.20 : x
  2. Step 2: Convert to fraction form
    957,983.96/1,321,987.56 = 528,282.20/x
  3. Step 3: Cross multiply
    957,983.96x = 1,321,987.56 × 528,282.20
  4. Step 4: Simplify right side
    957,983.96x = 698,382,496,569.43
  5. Step 5: Solve for x
    x = 698,382,496,569.43/957,983.96
  6. Step 6: Final answer
    x = 729,012.72

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Double scale
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Similar ratio
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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.