Home / 930,612.14-1,284,216.78-517,147.52

Finding the Fourth Proportional to 930,612.14, 1,284,216.78 and 517,147.52

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Solution

The fourth proportional to 930,612.14, 1,284,216.78 and 517,147.52 is: 713,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,612.14 : 1,284,216.78 = 517,147.52 : x
  2. Step 2: Convert to fraction form
    930,612.14/1,284,216.78 = 517,147.52/x
  3. Step 3: Cross multiply
    930,612.14x = 1,284,216.78 × 517,147.52
  4. Step 4: Simplify right side
    930,612.14x = 664,129,522,919.39
  5. Step 5: Solve for x
    x = 664,129,522,919.39/930,612.14
  6. Step 6: Final answer
    x = 713,648.03

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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.