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Finding the Fourth Proportional to 531,354.09, 797,042.07 and 215,595.03

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Solution

The fourth proportional to 531,354.09, 797,042.07 and 215,595.03 is: 323,396.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,354.09 : 797,042.07 = 215,595.03 : x
  2. Step 2: Convert to fraction form
    531,354.09/797,042.07 = 215,595.03/x
  3. Step 3: Cross multiply
    531,354.09x = 797,042.07 × 215,595.03
  4. Step 4: Simplify right side
    531,354.09x = 171,838,308,992.91
  5. Step 5: Solve for x
    x = 171,838,308,992.91/531,354.09
  6. Step 6: Final answer
    x = 323,396.98

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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.