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Finding the Fourth Proportional to 300,772.68, 415,038.69 and 173,423.67

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Solution

The fourth proportional to 300,772.68, 415,038.69 and 173,423.67 is: 239,308.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,772.68 : 415,038.69 = 173,423.67 : x
  2. Step 2: Convert to fraction form
    300,772.68/415,038.69 = 173,423.67/x
  3. Step 3: Cross multiply
    300,772.68x = 415,038.69 × 173,423.67
  4. Step 4: Simplify right side
    300,772.68x = 71,977,532,811.79
  5. Step 5: Solve for x
    x = 71,977,532,811.79/300,772.68
  6. Step 6: Final answer
    x = 239,308.75

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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.