Home / 863,401.40-1,294,583.70-443,497.40

Finding the Fourth Proportional to 863,401.40, 1,294,583.70 and 443,497.40

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Solution

The fourth proportional to 863,401.40, 1,294,583.70 and 443,497.40 is: 664,979.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,401.40 : 1,294,583.70 = 443,497.40 : x
  2. Step 2: Convert to fraction form
    863,401.40/1,294,583.70 = 443,497.40/x
  3. Step 3: Cross multiply
    863,401.40x = 1,294,583.70 × 443,497.40
  4. Step 4: Simplify right side
    863,401.40x = 574,144,505,032.38
  5. Step 5: Solve for x
    x = 574,144,505,032.38/863,401.40
  6. Step 6: Final answer
    x = 664,979.82

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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.