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Finding the Fourth Proportional to 1,899,632.14, 2,849,980.92 and 763,192.36

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Solution

The fourth proportional to 1,899,632.14, 2,849,980.92 and 763,192.36 is: 1,145,002.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,632.14 : 2,849,980.92 = 763,192.36 : x
  2. Step 2: Convert to fraction form
    1,899,632.14/2,849,980.92 = 763,192.36/x
  3. Step 3: Cross multiply
    1,899,632.14x = 2,849,980.92 × 763,192.36
  4. Step 4: Simplify right side
    1,899,632.14x = 2,175,083,664,289.77
  5. Step 5: Solve for x
    x = 2,175,083,664,289.77/1,899,632.14
  6. Step 6: Final answer
    x = 1,145,002.56

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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.