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Finding the Fourth Proportional to 1,916,998.30, 2,873,055.30 and 1,018,870.30

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Solution

The fourth proportional to 1,916,998.30, 2,873,055.30 and 1,018,870.30 is: 1,527,007.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,998.30 : 2,873,055.30 = 1,018,870.30 : x
  2. Step 2: Convert to fraction form
    1,916,998.30/2,873,055.30 = 1,018,870.30/x
  3. Step 3: Cross multiply
    1,916,998.30x = 2,873,055.30 × 1,018,870.30
  4. Step 4: Simplify right side
    1,916,998.30x = 2,927,270,715,427.59
  5. Step 5: Solve for x
    x = 2,927,270,715,427.59/1,916,998.30
  6. Step 6: Final answer
    x = 1,527,007.47

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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.