Home / 419,569.59-629,551.23-209,223.93

Finding the Fourth Proportional to 419,569.59, 629,551.23 and 209,223.93

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Solution

The fourth proportional to 419,569.59, 629,551.23 and 209,223.93 is: 313,934.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,569.59 : 629,551.23 = 209,223.93 : x
  2. Step 2: Convert to fraction form
    419,569.59/629,551.23 = 209,223.93/x
  3. Step 3: Cross multiply
    419,569.59x = 629,551.23 × 209,223.93
  4. Step 4: Simplify right side
    419,569.59x = 131,717,182,476.93
  5. Step 5: Solve for x
    x = 131,717,182,476.93/419,569.59
  6. Step 6: Final answer
    x = 313,934.05

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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.