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Finding the Fourth Proportional to 629,544.83, 868,769.12 and 343,064.93

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Solution

The fourth proportional to 629,544.83, 868,769.12 and 343,064.93 is: 473,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,544.83 : 868,769.12 = 343,064.93 : x
  2. Step 2: Convert to fraction form
    629,544.83/868,769.12 = 343,064.93/x
  3. Step 3: Cross multiply
    629,544.83x = 868,769.12 × 343,064.93
  4. Step 4: Simplify right side
    629,544.83x = 298,044,213,852.78
  5. Step 5: Solve for x
    x = 298,044,213,852.78/629,544.83
  6. Step 6: Final answer
    x = 473,428.11

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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.