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Finding the Fourth Proportional to 531,542.48, 797,605.32 and 215,914.64

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Solution

The fourth proportional to 531,542.48, 797,605.32 and 215,914.64 is: 323,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,542.48 : 797,605.32 = 215,914.64 : x
  2. Step 2: Convert to fraction form
    531,542.48/797,605.32 = 215,914.64/x
  3. Step 3: Cross multiply
    531,542.48x = 797,605.32 × 215,914.64
  4. Step 4: Simplify right side
    531,542.48x = 172,214,665,529.89
  5. Step 5: Solve for x
    x = 172,214,665,529.89/531,542.48
  6. Step 6: Final answer
    x = 323,990.41

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1.5x scale

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.