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Finding the Fourth Proportional to 1,075,626, 1,613,439.12 and 327,672

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Solution

The fourth proportional to 1,075,626, 1,613,439.12 and 327,672 is: 491,508.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,626 : 1,613,439.12 = 327,672 : x
  2. Step 2: Convert to fraction form
    1,075,626/1,613,439.12 = 327,672/x
  3. Step 3: Cross multiply
    1,075,626x = 1,613,439.12 × 327,672
  4. Step 4: Simplify right side
    1,075,626x = 528,678,823,328.64
  5. Step 5: Solve for x
    x = 528,678,823,328.64/1,075,626
  6. Step 6: Final answer
    x = 491,508.04

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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.