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Finding the Fourth Proportional to 531,043.35, 796,897.21 and 215,500.26

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Solution

The fourth proportional to 531,043.35, 796,897.21 and 215,500.26 is: 323,385.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,043.35 : 796,897.21 = 215,500.26 : x
  2. Step 2: Convert to fraction form
    531,043.35/796,897.21 = 215,500.26/x
  3. Step 3: Cross multiply
    531,043.35x = 796,897.21 × 215,500.26
  4. Step 4: Simplify right side
    531,043.35x = 171,731,555,948.28
  5. Step 5: Solve for x
    x = 171,731,555,948.28/531,043.35
  6. Step 6: Final answer
    x = 323,385.19

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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.