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Finding the Fourth Proportional to 1,075,554, 1,613,331 and 327,600

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Solution

The fourth proportional to 1,075,554, 1,613,331 and 327,600 is: 491,400

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,075,554 : 1,613,331 = 327,600 : x
  2. Step 2: Convert to fraction form
    1,075,554/1,613,331 = 327,600/x
  3. Step 3: Cross multiply
    1,075,554x = 1,613,331 × 327,600
  4. Step 4: Simplify right side
    1,075,554x = 528,527,235,600
  5. Step 5: Solve for x
    x = 528,527,235,600/1,075,554
  6. Step 6: Final answer
    x = 491,400

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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.