Home / 645,210.36-967,817.07-195,934.60

Finding the Fourth Proportional to 645,210.36, 967,817.07 and 195,934.60

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Solution

The fourth proportional to 645,210.36, 967,817.07 and 195,934.60 is: 293,902.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,210.36 : 967,817.07 = 195,934.60 : x
  2. Step 2: Convert to fraction form
    645,210.36/967,817.07 = 195,934.60/x
  3. Step 3: Cross multiply
    645,210.36x = 967,817.07 × 195,934.60
  4. Step 4: Simplify right side
    645,210.36x = 189,628,849,993.79
  5. Step 5: Solve for x
    x = 189,628,849,993.79/645,210.36
  6. Step 6: Final answer
    x = 293,902.37

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