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Finding the Fourth Proportional to 629,573.17, 868,785.69 and 343,087.09

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Solution

The fourth proportional to 629,573.17, 868,785.69 and 343,087.09 is: 473,446.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,573.17 : 868,785.69 = 343,087.09 : x
  2. Step 2: Convert to fraction form
    629,573.17/868,785.69 = 343,087.09/x
  3. Step 3: Cross multiply
    629,573.17x = 868,785.69 × 343,087.09
  4. Step 4: Simplify right side
    629,573.17x = 298,069,154,215.74
  5. Step 5: Solve for x
    x = 298,069,154,215.74/629,573.17
  6. Step 6: Final answer
    x = 473,446.41

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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.