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Finding the Fourth Proportional to 568,632.90, 784,429.83 and 339,028.26

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Solution

The fourth proportional to 568,632.90, 784,429.83 and 339,028.26 is: 467,689.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,632.90 : 784,429.83 = 339,028.26 : x
  2. Step 2: Convert to fraction form
    568,632.90/784,429.83 = 339,028.26/x
  3. Step 3: Cross multiply
    568,632.90x = 784,429.83 × 339,028.26
  4. Step 4: Simplify right side
    568,632.90x = 265,943,880,357.00
  5. Step 5: Solve for x
    x = 265,943,880,357.00/568,632.90
  6. Step 6: Final answer
    x = 467,689.93

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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.