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Finding the Fourth Proportional to 1,992,592.22, 2,749,763.31 and 1,133,152.34

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Solution

The fourth proportional to 1,992,592.22, 2,749,763.31 and 1,133,152.34 is: 1,563,742.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,592.22 : 2,749,763.31 = 1,133,152.34 : x
  2. Step 2: Convert to fraction form
    1,992,592.22/2,749,763.31 = 1,133,152.34/x
  3. Step 3: Cross multiply
    1,992,592.22x = 2,749,763.31 × 1,133,152.34
  4. Step 4: Simplify right side
    1,992,592.22x = 3,115,900,729,172.65
  5. Step 5: Solve for x
    x = 3,115,900,729,172.65/1,992,592.22
  6. Step 6: Final answer
    x = 1,563,742.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.