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Finding the Fourth Proportional to 657,912.40, 986,868.60 and 237,230.80

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Solution

The fourth proportional to 657,912.40, 986,868.60 and 237,230.80 is: 355,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,912.40 : 986,868.60 = 237,230.80 : x
  2. Step 2: Convert to fraction form
    657,912.40/986,868.60 = 237,230.80/x
  3. Step 3: Cross multiply
    657,912.40x = 986,868.60 × 237,230.80
  4. Step 4: Simplify right side
    657,912.40x = 234,115,627,472.88
  5. Step 5: Solve for x
    x = 234,115,627,472.88/657,912.40
  6. Step 6: Final answer
    x = 355,846.20

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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.