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Finding the Fourth Proportional to 339,392.31, 468,364.40 and 186,433.61

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Solution

The fourth proportional to 339,392.31, 468,364.40 and 186,433.61 is: 257,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,392.31 : 468,364.40 = 186,433.61 : x
  2. Step 2: Convert to fraction form
    339,392.31/468,364.40 = 186,433.61/x
  3. Step 3: Cross multiply
    339,392.31x = 468,364.40 × 186,433.61
  4. Step 4: Simplify right side
    339,392.31x = 87,318,865,154.24
  5. Step 5: Solve for x
    x = 87,318,865,154.24/339,392.31
  6. Step 6: Final answer
    x = 257,280.03

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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.