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Finding the Fourth Proportional to 384,199.80, 576,299.70 and 364,516.80

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Solution

The fourth proportional to 384,199.80, 576,299.70 and 364,516.80 is: 546,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,199.80 : 576,299.70 = 364,516.80 : x
  2. Step 2: Convert to fraction form
    384,199.80/576,299.70 = 364,516.80/x
  3. Step 3: Cross multiply
    384,199.80x = 576,299.70 × 364,516.80
  4. Step 4: Simplify right side
    384,199.80x = 210,070,922,484.96
  5. Step 5: Solve for x
    x = 210,070,922,484.96/384,199.80
  6. Step 6: Final answer
    x = 546,775.20

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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.