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Finding the Fourth Proportional to 1,405,992, 1,940,266.08 and 761,412

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Solution

The fourth proportional to 1,405,992, 1,940,266.08 and 761,412 is: 1,050,747.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,992 : 1,940,266.08 = 761,412 : x
  2. Step 2: Convert to fraction form
    1,405,992/1,940,266.08 = 761,412/x
  3. Step 3: Cross multiply
    1,405,992x = 1,940,266.08 × 761,412
  4. Step 4: Simplify right side
    1,405,992x = 1,477,341,876,504.96
  5. Step 5: Solve for x
    x = 1,477,341,876,504.96/1,405,992
  6. Step 6: Final answer
    x = 1,050,747.00

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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.