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Finding the Fourth Proportional to 2,766,345.48, 3,817,573.47 and 1,542,728.43

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Solution

The fourth proportional to 2,766,345.48, 3,817,573.47 and 1,542,728.43 is: 2,128,974.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766,345.48 : 3,817,573.47 = 1,542,728.43 : x
  2. Step 2: Convert to fraction form
    2,766,345.48/3,817,573.47 = 1,542,728.43/x
  3. Step 3: Cross multiply
    2,766,345.48x = 3,817,573.47 × 1,542,728.43
  4. Step 4: Simplify right side
    2,766,345.48x = 5,889,479,125,782.75
  5. Step 5: Solve for x
    x = 5,889,479,125,782.75/2,766,345.48
  6. Step 6: Final answer
    x = 2,128,974.55

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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.