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Finding the Fourth Proportional to 1,863,926.48, 2,796,476.56 and 665,822.32

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Solution

The fourth proportional to 1,863,926.48, 2,796,476.56 and 665,822.32 is: 998,943.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,863,926.48 : 2,796,476.56 = 665,822.32 : x
  2. Step 2: Convert to fraction form
    1,863,926.48/2,796,476.56 = 665,822.32/x
  3. Step 3: Cross multiply
    1,863,926.48x = 2,796,476.56 × 665,822.32
  4. Step 4: Simplify right side
    1,863,926.48x = 1,861,956,511,004.82
  5. Step 5: Solve for x
    x = 1,861,956,511,004.82/1,863,926.48
  6. Step 6: Final answer
    x = 998,943.11

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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.