Home / 434,890.54-651,706.23-299,815.96

Finding the Fourth Proportional to 434,890.54, 651,706.23 and 299,815.96

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Solution

The fourth proportional to 434,890.54, 651,706.23 and 299,815.96 is: 449,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,890.54 : 651,706.23 = 299,815.96 : x
  2. Step 2: Convert to fraction form
    434,890.54/651,706.23 = 299,815.96/x
  3. Step 3: Cross multiply
    434,890.54x = 651,706.23 × 299,815.96
  4. Step 4: Simplify right side
    434,890.54x = 195,391,928,985.43
  5. Step 5: Solve for x
    x = 195,391,928,985.43/434,890.54
  6. Step 6: Final answer
    x = 449,289.90

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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.