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Finding the Fourth Proportional to 668,941.64, 923,140.03 and 363,018.00

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Solution

The fourth proportional to 668,941.64, 923,140.03 and 363,018.00 is: 500,965.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,941.64 : 923,140.03 = 363,018.00 : x
  2. Step 2: Convert to fraction form
    668,941.64/923,140.03 = 363,018.00/x
  3. Step 3: Cross multiply
    668,941.64x = 923,140.03 × 363,018.00
  4. Step 4: Simplify right side
    668,941.64x = 335,116,450,134.94
  5. Step 5: Solve for x
    x = 335,116,450,134.94/668,941.64
  6. Step 6: Final answer
    x = 500,965.15

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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.