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Finding the Fourth Proportional to 1,395,398, 2,093,409 and 508,934

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Solution

The fourth proportional to 1,395,398, 2,093,409 and 508,934 is: 763,514.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,398 : 2,093,409 = 508,934 : x
  2. Step 2: Convert to fraction form
    1,395,398/2,093,409 = 508,934/x
  3. Step 3: Cross multiply
    1,395,398x = 2,093,409 × 508,934
  4. Step 4: Simplify right side
    1,395,398x = 1,065,407,016,006
  5. Step 5: Solve for x
    x = 1,065,407,016,006/1,395,398
  6. Step 6: Final answer
    x = 763,514.79

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.