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Finding the Fourth Proportional to 568,538.40, 784,651.80 and 323,582.72

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Solution

The fourth proportional to 568,538.40, 784,651.80 and 323,582.72 is: 446,583.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,538.40 : 784,651.80 = 323,582.72 : x
  2. Step 2: Convert to fraction form
    568,538.40/784,651.80 = 323,582.72/x
  3. Step 3: Cross multiply
    568,538.40x = 784,651.80 × 323,582.72
  4. Step 4: Simplify right side
    568,538.40x = 253,899,762,078.98
  5. Step 5: Solve for x
    x = 253,899,762,078.98/568,538.40
  6. Step 6: Final answer
    x = 446,583.31

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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.