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Finding the Fourth Proportional to 358,628.34, 494,740.86 and 231,344.94

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Solution

The fourth proportional to 358,628.34, 494,740.86 and 231,344.94 is: 319,148.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,628.34 : 494,740.86 = 231,344.94 : x
  2. Step 2: Convert to fraction form
    358,628.34/494,740.86 = 231,344.94/x
  3. Step 3: Cross multiply
    358,628.34x = 494,740.86 × 231,344.94
  4. Step 4: Simplify right side
    358,628.34x = 114,455,794,572.25
  5. Step 5: Solve for x
    x = 114,455,794,572.25/358,628.34
  6. Step 6: Final answer
    x = 319,148.77

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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.