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Finding the Fourth Proportional to 568,635.40, 784,433.28 and 339,030.73

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Solution

The fourth proportional to 568,635.40, 784,433.28 and 339,030.73 is: 467,693.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,635.40 : 784,433.28 = 339,030.73 : x
  2. Step 2: Convert to fraction form
    568,635.40/784,433.28 = 339,030.73/x
  3. Step 3: Cross multiply
    568,635.40x = 784,433.28 × 339,030.73
  4. Step 4: Simplify right side
    568,635.40x = 265,946,987,554.69
  5. Step 5: Solve for x
    x = 265,946,987,554.69/568,635.40
  6. Step 6: Final answer
    x = 467,693.34

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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.