Home / 511,247.40-766,986.30-156,277.80

Finding the Fourth Proportional to 511,247.40, 766,986.30 and 156,277.80

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Solution

The fourth proportional to 511,247.40, 766,986.30 and 156,277.80 is: 234,451.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,247.40 : 766,986.30 = 156,277.80 : x
  2. Step 2: Convert to fraction form
    511,247.40/766,986.30 = 156,277.80/x
  3. Step 3: Cross multiply
    511,247.40x = 766,986.30 × 156,277.80
  4. Step 4: Simplify right side
    511,247.40x = 119,862,931,594.14
  5. Step 5: Solve for x
    x = 119,862,931,594.14/511,247.40
  6. Step 6: Final answer
    x = 234,451.91

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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.