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Finding the Fourth Proportional to 668,965.41, 923,174.75 and 363,041.78

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Solution

The fourth proportional to 668,965.41, 923,174.75 and 363,041.78 is: 500,999.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,965.41 : 923,174.75 = 363,041.78 : x
  2. Step 2: Convert to fraction form
    668,965.41/923,174.75 = 363,041.78/x
  3. Step 3: Cross multiply
    668,965.41x = 923,174.75 × 363,041.78
  4. Step 4: Simplify right side
    668,965.41x = 335,151,000,782.79
  5. Step 5: Solve for x
    x = 335,151,000,782.79/668,965.41
  6. Step 6: Final answer
    x = 500,999.00

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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.