Home / 869,898.12-1,304,965.76-505,331

Finding the Fourth Proportional to 869,898.12, 1,304,965.76 and 505,331

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Solution

The fourth proportional to 869,898.12, 1,304,965.76 and 505,331 is: 758,065.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,898.12 : 1,304,965.76 = 505,331 : x
  2. Step 2: Convert to fraction form
    869,898.12/1,304,965.76 = 505,331/x
  3. Step 3: Cross multiply
    869,898.12x = 1,304,965.76 × 505,331
  4. Step 4: Simplify right side
    869,898.12x = 659,439,652,466.56
  5. Step 5: Solve for x
    x = 659,439,652,466.56/869,898.12
  6. Step 6: Final answer
    x = 758,065.38

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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.