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Finding the Fourth Proportional to 568,449.14, 784,459.95 and 313,800.50

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Solution

The fourth proportional to 568,449.14, 784,459.95 and 313,800.50 is: 433,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,449.14 : 784,459.95 = 313,800.50 : x
  2. Step 2: Convert to fraction form
    568,449.14/784,459.95 = 313,800.50/x
  3. Step 3: Cross multiply
    568,449.14x = 784,459.95 × 313,800.50
  4. Step 4: Simplify right side
    568,449.14x = 246,163,924,539.98
  5. Step 5: Solve for x
    x = 246,163,924,539.98/568,449.14
  6. Step 6: Final answer
    x = 433,044.77

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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.