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Finding the Fourth Proportional to 629,592.84, 868,812.77 and 343,106.78

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Solution

The fourth proportional to 629,592.84, 868,812.77 and 343,106.78 is: 473,473.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,592.84 : 868,812.77 = 343,106.78 : x
  2. Step 2: Convert to fraction form
    629,592.84/868,812.77 = 343,106.78/x
  3. Step 3: Cross multiply
    629,592.84x = 868,812.77 × 343,106.78
  4. Step 4: Simplify right side
    629,592.84x = 298,095,545,877.98
  5. Step 5: Solve for x
    x = 298,095,545,877.98/629,592.84
  6. Step 6: Final answer
    x = 473,473.53

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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.