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Finding the Fourth Proportional to 568,065.70, 784,000.10 and 326,347.81

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Solution

The fourth proportional to 568,065.70, 784,000.10 and 326,347.81 is: 450,399.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,065.70 : 784,000.10 = 326,347.81 : x
  2. Step 2: Convert to fraction form
    568,065.70/784,000.10 = 326,347.81/x
  3. Step 3: Cross multiply
    568,065.70x = 784,000.10 × 326,347.81
  4. Step 4: Simplify right side
    568,065.70x = 255,856,715,674.78
  5. Step 5: Solve for x
    x = 255,856,715,674.78/568,065.70
  6. Step 6: Final answer
    x = 450,399.87

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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.