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Finding the Fourth Proportional to 1,788,211.12, 2,467,796.23 and 1,024,412.30

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Solution

The fourth proportional to 1,788,211.12, 2,467,796.23 and 1,024,412.30 is: 1,413,726.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,211.12 : 2,467,796.23 = 1,024,412.30 : x
  2. Step 2: Convert to fraction form
    1,788,211.12/2,467,796.23 = 1,024,412.30/x
  3. Step 3: Cross multiply
    1,788,211.12x = 2,467,796.23 × 1,024,412.30
  4. Step 4: Simplify right side
    1,788,211.12x = 2,528,040,811,905.63
  5. Step 5: Solve for x
    x = 2,528,040,811,905.63/1,788,211.12
  6. Step 6: Final answer
    x = 1,413,726.15

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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.