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Finding the Fourth Proportional to 568,323.45, 784,230.53 and 313,658.19

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Solution

The fourth proportional to 568,323.45, 784,230.53 and 313,658.19 is: 432,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,323.45 : 784,230.53 = 313,658.19 : x
  2. Step 2: Convert to fraction form
    568,323.45/784,230.53 = 313,658.19/x
  3. Step 3: Cross multiply
    568,323.45x = 784,230.53 × 313,658.19
  4. Step 4: Simplify right side
    568,323.45x = 245,980,327,014.25
  5. Step 5: Solve for x
    x = 245,980,327,014.25/568,323.45
  6. Step 6: Final answer
    x = 432,817.49

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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.