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Finding the Fourth Proportional to 419,950.60, 629,925.90 and 242,803.60

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Solution

The fourth proportional to 419,950.60, 629,925.90 and 242,803.60 is: 364,205.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,950.60 : 629,925.90 = 242,803.60 : x
  2. Step 2: Convert to fraction form
    419,950.60/629,925.90 = 242,803.60/x
  3. Step 3: Cross multiply
    419,950.60x = 629,925.90 × 242,803.60
  4. Step 4: Simplify right side
    419,950.60x = 152,948,276,253.24
  5. Step 5: Solve for x
    x = 152,948,276,253.24/419,950.60
  6. Step 6: Final answer
    x = 364,205.40

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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.