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Finding the Fourth Proportional to 318,358.96, 439,333.07 and 175,115.93

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Solution

The fourth proportional to 318,358.96, 439,333.07 and 175,115.93 is: 241,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,358.96 : 439,333.07 = 175,115.93 : x
  2. Step 2: Convert to fraction form
    318,358.96/439,333.07 = 175,115.93/x
  3. Step 3: Cross multiply
    318,358.96x = 439,333.07 × 175,115.93
  4. Step 4: Simplify right side
    318,358.96x = 76,934,216,060.56
  5. Step 5: Solve for x
    x = 76,934,216,060.56/318,358.96
  6. Step 6: Final answer
    x = 241,658.71

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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.