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Finding the Fourth Proportional to 367,635.40, 513,639.80 and 367,635.40

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Solution

The fourth proportional to 367,635.40, 513,639.80 and 367,635.40 is: 513,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,635.40 : 513,639.80 = 367,635.40 : x
  2. Step 2: Convert to fraction form
    367,635.40/513,639.80 = 367,635.40/x
  3. Step 3: Cross multiply
    367,635.40x = 513,639.80 × 367,635.40
  4. Step 4: Simplify right side
    367,635.40x = 188,832,173,328.92
  5. Step 5: Solve for x
    x = 188,832,173,328.92/367,635.40
  6. Step 6: Final answer
    x = 513,639.80

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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.