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Finding the Fourth Proportional to 318,601.69, 439,666.89 and 175,358.63

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Solution

The fourth proportional to 318,601.69, 439,666.89 and 175,358.63 is: 241,993.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,601.69 : 439,666.89 = 175,358.63 : x
  2. Step 2: Convert to fraction form
    318,601.69/439,666.89 = 175,358.63/x
  3. Step 3: Cross multiply
    318,601.69x = 439,666.89 × 175,358.63
  4. Step 4: Simplify right side
    318,601.69x = 77,099,383,486.76
  5. Step 5: Solve for x
    x = 77,099,383,486.76/318,601.69
  6. Step 6: Final answer
    x = 241,993.02

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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.