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Finding the Fourth Proportional to 693,508.57, 956,771.49 and 435,234.80

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Solution

The fourth proportional to 693,508.57, 956,771.49 and 435,234.80 is: 600,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,508.57 : 956,771.49 = 435,234.80 : x
  2. Step 2: Convert to fraction form
    693,508.57/956,771.49 = 435,234.80/x
  3. Step 3: Cross multiply
    693,508.57x = 956,771.49 × 435,234.80
  4. Step 4: Simplify right side
    693,508.57x = 416,420,252,119.91
  5. Step 5: Solve for x
    x = 416,420,252,119.91/693,508.57
  6. Step 6: Final answer
    x = 600,454.37

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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.