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Finding the Fourth Proportional to 450,554.94, 676,065.40 and 198,012.64

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Solution

The fourth proportional to 450,554.94, 676,065.40 and 198,012.64 is: 297,121.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,554.94 : 676,065.40 = 198,012.64 : x
  2. Step 2: Convert to fraction form
    450,554.94/676,065.40 = 198,012.64/x
  3. Step 3: Cross multiply
    450,554.94x = 676,065.40 × 198,012.64
  4. Step 4: Simplify right side
    450,554.94x = 133,869,494,666.66
  5. Step 5: Solve for x
    x = 133,869,494,666.66/450,554.94
  6. Step 6: Final answer
    x = 297,121.36

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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.