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Finding the Fourth Proportional to 667,100.40, 935,806.80 and 667,100.40

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Solution

The fourth proportional to 667,100.40, 935,806.80 and 667,100.40 is: 935,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,100.40 : 935,806.80 = 667,100.40 : x
  2. Step 2: Convert to fraction form
    667,100.40/935,806.80 = 667,100.40/x
  3. Step 3: Cross multiply
    667,100.40x = 935,806.80 × 667,100.40
  4. Step 4: Simplify right side
    667,100.40x = 624,277,090,602.72
  5. Step 5: Solve for x
    x = 624,277,090,602.72/667,100.40
  6. Step 6: Final answer
    x = 935,806.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.