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Finding the Fourth Proportional to 1,061,429.31, 1,590,814.90 and 835,899.03

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Solution

The fourth proportional to 1,061,429.31, 1,590,814.90 and 835,899.03 is: 1,252,801.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061,429.31 : 1,590,814.90 = 835,899.03 : x
  2. Step 2: Convert to fraction form
    1,061,429.31/1,590,814.90 = 835,899.03/x
  3. Step 3: Cross multiply
    1,061,429.31x = 1,590,814.90 × 835,899.03
  4. Step 4: Simplify right side
    1,061,429.31x = 1,329,760,631,819.55
  5. Step 5: Solve for x
    x = 1,329,760,631,819.55/1,061,429.31
  6. Step 6: Final answer
    x = 1,252,801.88

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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.