Home / 629,936.80-869,316.94-343,461.68

Finding the Fourth Proportional to 629,936.80, 869,316.94 and 343,461.68

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Solution

The fourth proportional to 629,936.80, 869,316.94 and 343,461.68 is: 473,979.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,936.80 : 869,316.94 = 343,461.68 : x
  2. Step 2: Convert to fraction form
    629,936.80/869,316.94 = 343,461.68/x
  3. Step 3: Cross multiply
    629,936.80x = 869,316.94 × 343,461.68
  4. Step 4: Simplify right side
    629,936.80x = 298,577,056,664.86
  5. Step 5: Solve for x
    x = 298,577,056,664.86/629,936.80
  6. Step 6: Final answer
    x = 473,979.38

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Double scale
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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.