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Finding the Fourth Proportional to 1,941,567.06, 2,913,662.79 and 679,405.62

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Solution

The fourth proportional to 1,941,567.06, 2,913,662.79 and 679,405.62 is: 1,019,567.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941,567.06 : 2,913,662.79 = 679,405.62 : x
  2. Step 2: Convert to fraction form
    1,941,567.06/2,913,662.79 = 679,405.62/x
  3. Step 3: Cross multiply
    1,941,567.06x = 2,913,662.79 × 679,405.62
  4. Step 4: Simplify right side
    1,941,567.06x = 1,979,558,874,310.88
  5. Step 5: Solve for x
    x = 1,979,558,874,310.88/1,941,567.06
  6. Step 6: Final answer
    x = 1,019,567.60

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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.