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Finding the Fourth Proportional to 646,668.84, 970,003.44 and 197,392.26

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Solution

The fourth proportional to 646,668.84, 970,003.44 and 197,392.26 is: 296,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,668.84 : 970,003.44 = 197,392.26 : x
  2. Step 2: Convert to fraction form
    646,668.84/970,003.44 = 197,392.26/x
  3. Step 3: Cross multiply
    646,668.84x = 970,003.44 × 197,392.26
  4. Step 4: Simplify right side
    646,668.84x = 191,471,171,229.37
  5. Step 5: Solve for x
    x = 191,471,171,229.37/646,668.84
  6. Step 6: Final answer
    x = 296,088.44

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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.