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Finding the Fourth Proportional to 531,990.90, 796,674.15 and 353,531.70

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Solution

The fourth proportional to 531,990.90, 796,674.15 and 353,531.70 is: 529,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,990.90 : 796,674.15 = 353,531.70 : x
  2. Step 2: Convert to fraction form
    531,990.90/796,674.15 = 353,531.70/x
  3. Step 3: Cross multiply
    531,990.90x = 796,674.15 × 353,531.70
  4. Step 4: Simplify right side
    531,990.90x = 281,649,566,595.56
  5. Step 5: Solve for x
    x = 281,649,566,595.56/531,990.90
  6. Step 6: Final answer
    x = 529,425.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.