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Finding the Fourth Proportional to 318,393.65, 439,374.05 and 175,153.73

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Solution

The fourth proportional to 318,393.65, 439,374.05 and 175,153.73 is: 241,707.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,393.65 : 439,374.05 = 175,153.73 : x
  2. Step 2: Convert to fraction form
    318,393.65/439,374.05 = 175,153.73/x
  3. Step 3: Cross multiply
    318,393.65x = 439,374.05 × 175,153.73
  4. Step 4: Simplify right side
    318,393.65x = 76,958,002,846.94
  5. Step 5: Solve for x
    x = 76,958,002,846.94/318,393.65
  6. Step 6: Final answer
    x = 241,707.09

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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.