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Finding the Fourth Proportional to 668,954.57, 923,159.70 and 363,030.86

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Solution

The fourth proportional to 668,954.57, 923,159.70 and 363,030.86 is: 500,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,954.57 : 923,159.70 = 363,030.86 : x
  2. Step 2: Convert to fraction form
    668,954.57/923,159.70 = 363,030.86/x
  3. Step 3: Cross multiply
    668,954.57x = 923,159.70 × 363,030.86
  4. Step 4: Simplify right side
    668,954.57x = 335,135,462,116.24
  5. Step 5: Solve for x
    x = 335,135,462,116.24/668,954.57
  6. Step 6: Final answer
    x = 500,983.89

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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.