Home / 679,534.35-936,775.20-449,706.62

Finding the Fourth Proportional to 679,534.35, 936,775.20 and 449,706.62

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Solution

The fourth proportional to 679,534.35, 936,775.20 and 449,706.62 is: 619,945.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,534.35 : 936,775.20 = 449,706.62 : x
  2. Step 2: Convert to fraction form
    679,534.35/936,775.20 = 449,706.62/x
  3. Step 3: Cross multiply
    679,534.35x = 936,775.20 × 449,706.62
  4. Step 4: Simplify right side
    679,534.35x = 421,274,004,207.95
  5. Step 5: Solve for x
    x = 421,274,004,207.95/679,534.35
  6. Step 6: Final answer
    x = 619,945.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.