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Finding the Fourth Proportional to 1,898,566.29, 2,620,028.37 and 1,027,400.91

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Solution

The fourth proportional to 1,898,566.29, 2,620,028.37 and 1,027,400.91 is: 1,417,816.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,566.29 : 2,620,028.37 = 1,027,400.91 : x
  2. Step 2: Convert to fraction form
    1,898,566.29/2,620,028.37 = 1,027,400.91/x
  3. Step 3: Cross multiply
    1,898,566.29x = 2,620,028.37 × 1,027,400.91
  4. Step 4: Simplify right side
    1,898,566.29x = 2,691,819,531,563.82
  5. Step 5: Solve for x
    x = 2,691,819,531,563.82/1,898,566.29
  6. Step 6: Final answer
    x = 1,417,816.98

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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.