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Finding the Fourth Proportional to 3,545,934, 5,318,901 and 886,542

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Solution

The fourth proportional to 3,545,934, 5,318,901 and 886,542 is: 1,329,813

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545,934 : 5,318,901 = 886,542 : x
  2. Step 2: Convert to fraction form
    3,545,934/5,318,901 = 886,542/x
  3. Step 3: Cross multiply
    3,545,934x = 5,318,901 × 886,542
  4. Step 4: Simplify right side
    3,545,934x = 4,715,429,130,342
  5. Step 5: Solve for x
    x = 4,715,429,130,342/3,545,934
  6. Step 6: Final answer
    x = 1,329,813

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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.