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Finding the Fourth Proportional to 629,535.28, 868,758.70 and 343,055.28

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Solution

The fourth proportional to 629,535.28, 868,758.70 and 343,055.28 is: 473,416.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,535.28 : 868,758.70 = 343,055.28 : x
  2. Step 2: Convert to fraction form
    629,535.28/868,758.70 = 343,055.28/x
  3. Step 3: Cross multiply
    629,535.28x = 868,758.70 × 343,055.28
  4. Step 4: Simplify right side
    629,535.28x = 298,032,259,080.94
  5. Step 5: Solve for x
    x = 298,032,259,080.94/629,535.28
  6. Step 6: Final answer
    x = 473,416.29

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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.