Home / 928,106.16-1,280,331-605,667.12

Finding the Fourth Proportional to 928,106.16, 1,280,331 and 605,667.12

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Solution

The fourth proportional to 928,106.16, 1,280,331 and 605,667.12 is: 835,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,106.16 : 1,280,331 = 605,667.12 : x
  2. Step 2: Convert to fraction form
    928,106.16/1,280,331 = 605,667.12/x
  3. Step 3: Cross multiply
    928,106.16x = 1,280,331 × 605,667.12
  4. Step 4: Simplify right side
    928,106.16x = 775,454,389,416.72
  5. Step 5: Solve for x
    x = 775,454,389,416.72/928,106.16
  6. Step 6: Final answer
    x = 835,523.37

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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.