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Finding the Fourth Proportional to 531,573.48, 797,651.82 and 215,945.64

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Solution

The fourth proportional to 531,573.48, 797,651.82 and 215,945.64 is: 324,036.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,573.48 : 797,651.82 = 215,945.64 : x
  2. Step 2: Convert to fraction form
    531,573.48/797,651.82 = 215,945.64/x
  3. Step 3: Cross multiply
    531,573.48x = 797,651.82 × 215,945.64
  4. Step 4: Simplify right side
    531,573.48x = 172,249,432,767.07
  5. Step 5: Solve for x
    x = 172,249,432,767.07/531,573.48
  6. Step 6: Final answer
    x = 324,036.92

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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.