Home / 450,566.58-621,780.23-243,834.56

Finding the Fourth Proportional to 450,566.58, 621,780.23 and 243,834.56

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Solution

The fourth proportional to 450,566.58, 621,780.23 and 243,834.56 is: 336,490.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,566.58 : 621,780.23 = 243,834.56 : x
  2. Step 2: Convert to fraction form
    450,566.58/621,780.23 = 243,834.56/x
  3. Step 3: Cross multiply
    450,566.58x = 621,780.23 × 243,834.56
  4. Step 4: Simplify right side
    450,566.58x = 151,611,504,470.68
  5. Step 5: Solve for x
    x = 151,611,504,470.68/450,566.58
  6. Step 6: Final answer
    x = 336,490.79

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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.