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Finding the Fourth Proportional to 568,480.95, 784,498.77 and 313,826.67

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Solution

The fourth proportional to 568,480.95, 784,498.77 and 313,826.67 is: 433,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,480.95 : 784,498.77 = 313,826.67 : x
  2. Step 2: Convert to fraction form
    568,480.95/784,498.77 = 313,826.67/x
  3. Step 3: Cross multiply
    568,480.95x = 784,498.77 × 313,826.67
  4. Step 4: Simplify right side
    568,480.95x = 246,196,636,608.20
  5. Step 5: Solve for x
    x = 246,196,636,608.20/568,480.95
  6. Step 6: Final answer
    x = 433,078.08

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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.