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Finding the Fourth Proportional to 443,907.84, 612,634.56 and 242,734.08

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Solution

The fourth proportional to 443,907.84, 612,634.56 and 242,734.08 is: 334,995.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,907.84 : 612,634.56 = 242,734.08 : x
  2. Step 2: Convert to fraction form
    443,907.84/612,634.56 = 242,734.08/x
  3. Step 3: Cross multiply
    443,907.84x = 612,634.56 × 242,734.08
  4. Step 4: Simplify right side
    443,907.84x = 148,707,286,297.81
  5. Step 5: Solve for x
    x = 148,707,286,297.81/443,907.84
  6. Step 6: Final answer
    x = 334,995.85

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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.