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Finding the Fourth Proportional to 501,088.88, 691,534.68 and 331,024.88

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Solution

The fourth proportional to 501,088.88, 691,534.68 and 331,024.88 is: 456,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,088.88 : 691,534.68 = 331,024.88 : x
  2. Step 2: Convert to fraction form
    501,088.88/691,534.68 = 331,024.88/x
  3. Step 3: Cross multiply
    501,088.88x = 691,534.68 × 331,024.88
  4. Step 4: Simplify right side
    501,088.88x = 228,915,184,462.84
  5. Step 5: Solve for x
    x = 228,915,184,462.84/501,088.88
  6. Step 6: Final answer
    x = 456,835.49

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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.