Home / 1,085,412.39-1,628,196.36-286,685.97

Finding the Fourth Proportional to 1,085,412.39, 1,628,196.36 and 286,685.97

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Solution

The fourth proportional to 1,085,412.39, 1,628,196.36 and 286,685.97 is: 430,049.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,412.39 : 1,628,196.36 = 286,685.97 : x
  2. Step 2: Convert to fraction form
    1,085,412.39/1,628,196.36 = 286,685.97/x
  3. Step 3: Cross multiply
    1,085,412.39x = 1,628,196.36 × 286,685.97
  4. Step 4: Simplify right side
    1,085,412.39x = 466,781,052,817.07
  5. Step 5: Solve for x
    x = 466,781,052,817.07/1,085,412.39
  6. Step 6: Final answer
    x = 430,049.50

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.