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Finding the Fourth Proportional to 443,391.40, 665,087.10 and 301,673.80

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Solution

The fourth proportional to 443,391.40, 665,087.10 and 301,673.80 is: 452,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,391.40 : 665,087.10 = 301,673.80 : x
  2. Step 2: Convert to fraction form
    443,391.40/665,087.10 = 301,673.80/x
  3. Step 3: Cross multiply
    443,391.40x = 665,087.10 × 301,673.80
  4. Step 4: Simplify right side
    443,391.40x = 200,639,352,787.98
  5. Step 5: Solve for x
    x = 200,639,352,787.98/443,391.40
  6. Step 6: Final answer
    x = 452,510.70

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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.