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Finding the Fourth Proportional to 339,359.74, 509,031.84 and 170,834.82

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Solution

The fourth proportional to 339,359.74, 509,031.84 and 170,834.82 is: 256,248.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,359.74 : 509,031.84 = 170,834.82 : x
  2. Step 2: Convert to fraction form
    339,359.74/509,031.84 = 170,834.82/x
  3. Step 3: Cross multiply
    339,359.74x = 509,031.84 × 170,834.82
  4. Step 4: Simplify right side
    339,359.74x = 86,960,359,361.34
  5. Step 5: Solve for x
    x = 86,960,359,361.34/339,359.74
  6. Step 6: Final answer
    x = 256,248.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.