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Finding the Fourth Proportional to 568,106.10, 784,270.49 and 353,315.37

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Solution

The fourth proportional to 568,106.10, 784,270.49 and 353,315.37 is: 487,751.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,106.10 : 784,270.49 = 353,315.37 : x
  2. Step 2: Convert to fraction form
    568,106.10/784,270.49 = 353,315.37/x
  3. Step 3: Cross multiply
    568,106.10x = 784,270.49 × 353,315.37
  4. Step 4: Simplify right side
    568,106.10x = 277,094,816,587.85
  5. Step 5: Solve for x
    x = 277,094,816,587.85/568,106.10
  6. Step 6: Final answer
    x = 487,751.88

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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.