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Finding the Fourth Proportional to 1,834,990.78, 2,752,486.17 and 1,834,990.78

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Solution

The fourth proportional to 1,834,990.78, 2,752,486.17 and 1,834,990.78 is: 2,752,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834,990.78 : 2,752,486.17 = 1,834,990.78 : x
  2. Step 2: Convert to fraction form
    1,834,990.78/2,752,486.17 = 1,834,990.78/x
  3. Step 3: Cross multiply
    1,834,990.78x = 2,752,486.17 × 1,834,990.78
  4. Step 4: Simplify right side
    1,834,990.78x = 5,050,786,721,090.13
  5. Step 5: Solve for x
    x = 5,050,786,721,090.13/1,834,990.78
  6. Step 6: Final answer
    x = 2,752,486.17

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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.