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Finding the Fourth Proportional to 700,950.08, 967,310.16 and 399,144.08

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Solution

The fourth proportional to 700,950.08, 967,310.16 and 399,144.08 is: 550,818.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,950.08 : 967,310.16 = 399,144.08 : x
  2. Step 2: Convert to fraction form
    700,950.08/967,310.16 = 399,144.08/x
  3. Step 3: Cross multiply
    700,950.08x = 967,310.16 × 399,144.08
  4. Step 4: Simplify right side
    700,950.08x = 386,096,123,887.85
  5. Step 5: Solve for x
    x = 386,096,123,887.85/700,950.08
  6. Step 6: Final answer
    x = 550,818.29

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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.