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Finding the Fourth Proportional to 572,892.52, 790,563.32 and 331,152.06

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Solution

The fourth proportional to 572,892.52, 790,563.32 and 331,152.06 is: 456,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,892.52 : 790,563.32 = 331,152.06 : x
  2. Step 2: Convert to fraction form
    572,892.52/790,563.32 = 331,152.06/x
  3. Step 3: Cross multiply
    572,892.52x = 790,563.32 × 331,152.06
  4. Step 4: Simplify right side
    572,892.52x = 261,796,671,978.44
  5. Step 5: Solve for x
    x = 261,796,671,978.44/572,892.52
  6. Step 6: Final answer
    x = 456,973.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.