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Finding the Fourth Proportional to 629,322.52, 868,471.04 and 357,396.08

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Solution

The fourth proportional to 629,322.52, 868,471.04 and 357,396.08 is: 493,209.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,322.52 : 868,471.04 = 357,396.08 : x
  2. Step 2: Convert to fraction form
    629,322.52/868,471.04 = 357,396.08/x
  3. Step 3: Cross multiply
    629,322.52x = 868,471.04 × 357,396.08
  4. Step 4: Simplify right side
    629,322.52x = 310,388,145,289.52
  5. Step 5: Solve for x
    x = 310,388,145,289.52/629,322.52
  6. Step 6: Final answer
    x = 493,209.98

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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.