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Finding the Fourth Proportional to 341,998.80, 479,979.30 and 341,998.80

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Solution

The fourth proportional to 341,998.80, 479,979.30 and 341,998.80 is: 479,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,998.80 : 479,979.30 = 341,998.80 : x
  2. Step 2: Convert to fraction form
    341,998.80/479,979.30 = 341,998.80/x
  3. Step 3: Cross multiply
    341,998.80x = 479,979.30 × 341,998.80
  4. Step 4: Simplify right side
    341,998.80x = 164,152,344,624.84
  5. Step 5: Solve for x
    x = 164,152,344,624.84/341,998.80
  6. Step 6: Final answer
    x = 479,979.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.