Home / 520,380.11-780,623.73-196,441.07

Finding the Fourth Proportional to 520,380.11, 780,623.73 and 196,441.07

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Solution

The fourth proportional to 520,380.11, 780,623.73 and 196,441.07 is: 294,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,380.11 : 780,623.73 = 196,441.07 : x
  2. Step 2: Convert to fraction form
    520,380.11/780,623.73 = 196,441.07/x
  3. Step 3: Cross multiply
    520,380.11x = 780,623.73 × 196,441.07
  4. Step 4: Simplify right side
    520,380.11x = 153,346,556,885.47
  5. Step 5: Solve for x
    x = 153,346,556,885.47/520,380.11
  6. Step 6: Final answer
    x = 294,681.82

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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.