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Finding the Fourth Proportional to 629,616.11, 868,873.23 and 357,698.93

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Solution

The fourth proportional to 629,616.11, 868,873.23 and 357,698.93 is: 493,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,616.11 : 868,873.23 = 357,698.93 : x
  2. Step 2: Convert to fraction form
    629,616.11/868,873.23 = 357,698.93/x
  3. Step 3: Cross multiply
    629,616.11x = 868,873.23 × 357,698.93
  4. Step 4: Simplify right side
    629,616.11x = 310,795,023,234.18
  5. Step 5: Solve for x
    x = 310,795,023,234.18/629,616.11
  6. Step 6: Final answer
    x = 493,626.22

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1.5x scale

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.