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Finding the Fourth Proportional to 568,115.64, 784,395.90 and 353,352.24

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Solution

The fourth proportional to 568,115.64, 784,395.90 and 353,352.24 is: 487,872.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,115.64 : 784,395.90 = 353,352.24 : x
  2. Step 2: Convert to fraction form
    568,115.64/784,395.90 = 353,352.24/x
  3. Step 3: Cross multiply
    568,115.64x = 784,395.90 × 353,352.24
  4. Step 4: Simplify right side
    568,115.64x = 277,168,048,311.82
  5. Step 5: Solve for x
    x = 277,168,048,311.82/568,115.64
  6. Step 6: Final answer
    x = 487,872.59

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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.