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Finding the Fourth Proportional to 629,532.32, 868,722.03 and 357,564.29

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Solution

The fourth proportional to 629,532.32, 868,722.03 and 357,564.29 is: 493,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,532.32 : 868,722.03 = 357,564.29 : x
  2. Step 2: Convert to fraction form
    629,532.32/868,722.03 = 357,564.29/x
  3. Step 3: Cross multiply
    629,532.32x = 868,722.03 × 357,564.29
  4. Step 4: Simplify right side
    629,532.32x = 310,623,971,520.70
  5. Step 5: Solve for x
    x = 310,623,971,520.70/629,532.32
  6. Step 6: Final answer
    x = 493,420.22

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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.