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Finding the Fourth Proportional to 419,532.60, 629,390.04 and 153,292.71

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Solution

The fourth proportional to 419,532.60, 629,390.04 and 153,292.71 is: 229,972.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,532.60 : 629,390.04 = 153,292.71 : x
  2. Step 2: Convert to fraction form
    419,532.60/629,390.04 = 153,292.71/x
  3. Step 3: Cross multiply
    419,532.60x = 629,390.04 × 153,292.71
  4. Step 4: Simplify right side
    419,532.60x = 96,480,904,878.61
  5. Step 5: Solve for x
    x = 96,480,904,878.61/419,532.60
  6. Step 6: Final answer
    x = 229,972.37

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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.