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Finding the Fourth Proportional to 404,711.80, 607,067.70 and 298,423.60

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Solution

The fourth proportional to 404,711.80, 607,067.70 and 298,423.60 is: 447,635.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,711.80 : 607,067.70 = 298,423.60 : x
  2. Step 2: Convert to fraction form
    404,711.80/607,067.70 = 298,423.60/x
  3. Step 3: Cross multiply
    404,711.80x = 607,067.70 × 298,423.60
  4. Step 4: Simplify right side
    404,711.80x = 181,163,328,477.72
  5. Step 5: Solve for x
    x = 181,163,328,477.72/404,711.80
  6. Step 6: Final answer
    x = 447,635.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.