Home / 511,211.28-766,450.20-195,402

Finding the Fourth Proportional to 511,211.28, 766,450.20 and 195,402

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Solution

The fourth proportional to 511,211.28, 766,450.20 and 195,402 is: 292,962.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,211.28 : 766,450.20 = 195,402 : x
  2. Step 2: Convert to fraction form
    511,211.28/766,450.20 = 195,402/x
  3. Step 3: Cross multiply
    511,211.28x = 766,450.20 × 195,402
  4. Step 4: Simplify right side
    511,211.28x = 149,765,901,980.40
  5. Step 5: Solve for x
    x = 149,765,901,980.40/511,211.28
  6. Step 6: Final answer
    x = 292,962.83

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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.