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Finding the Fourth Proportional to 1,946,400.68, 2,917,938.42 and 1,375,987.34

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Solution

The fourth proportional to 1,946,400.68, 2,917,938.42 and 1,375,987.34 is: 2,062,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946,400.68 : 2,917,938.42 = 1,375,987.34 : x
  2. Step 2: Convert to fraction form
    1,946,400.68/2,917,938.42 = 1,375,987.34/x
  3. Step 3: Cross multiply
    1,946,400.68x = 2,917,938.42 × 1,375,987.34
  4. Step 4: Simplify right side
    1,946,400.68x = 4,015,046,332,114.45
  5. Step 5: Solve for x
    x = 4,015,046,332,114.45/1,946,400.68
  6. Step 6: Final answer
    x = 2,062,805.65

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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.