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Finding the Fourth Proportional to 1,972,880.48, 2,722,652.16 and 1,113,470.48

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Solution

The fourth proportional to 1,972,880.48, 2,722,652.16 and 1,113,470.48 is: 1,536,632.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,880.48 : 2,722,652.16 = 1,113,470.48 : x
  2. Step 2: Convert to fraction form
    1,972,880.48/2,722,652.16 = 1,113,470.48/x
  3. Step 3: Cross multiply
    1,972,880.48x = 2,722,652.16 × 1,113,470.48
  4. Step 4: Simplify right side
    1,972,880.48x = 3,031,592,807,468.24
  5. Step 5: Solve for x
    x = 3,031,592,807,468.24/1,972,880.48
  6. Step 6: Final answer
    x = 1,536,632.78

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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.