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Finding the Fourth Proportional to 662,482.94, 993,585.09 and 213,243.98

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Solution

The fourth proportional to 662,482.94, 993,585.09 and 213,243.98 is: 319,821.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,482.94 : 993,585.09 = 213,243.98 : x
  2. Step 2: Convert to fraction form
    662,482.94/993,585.09 = 213,243.98/x
  3. Step 3: Cross multiply
    662,482.94x = 993,585.09 × 213,243.98
  4. Step 4: Simplify right side
    662,482.94x = 211,876,039,060.26
  5. Step 5: Solve for x
    x = 211,876,039,060.26/662,482.94
  6. Step 6: Final answer
    x = 319,821.12

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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.