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Finding the Fourth Proportional to 669,676.65, 924,161.22 and 394,095.42

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Solution

The fourth proportional to 669,676.65, 924,161.22 and 394,095.42 is: 543,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,676.65 : 924,161.22 = 394,095.42 : x
  2. Step 2: Convert to fraction form
    669,676.65/924,161.22 = 394,095.42/x
  3. Step 3: Cross multiply
    669,676.65x = 924,161.22 × 394,095.42
  4. Step 4: Simplify right side
    669,676.65x = 364,207,704,143.61
  5. Step 5: Solve for x
    x = 364,207,704,143.61/669,676.65
  6. Step 6: Final answer
    x = 543,856.06

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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.