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Finding the Fourth Proportional to 668,966.91, 923,176.83 and 363,043.28

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Solution

The fourth proportional to 668,966.91, 923,176.83 and 363,043.28 is: 501,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,966.91 : 923,176.83 = 363,043.28 : x
  2. Step 2: Convert to fraction form
    668,966.91/923,176.83 = 363,043.28/x
  3. Step 3: Cross multiply
    668,966.91x = 923,176.83 × 363,043.28
  4. Step 4: Simplify right side
    668,966.91x = 335,153,139,767.32
  5. Step 5: Solve for x
    x = 335,153,139,767.32/668,966.91
  6. Step 6: Final answer
    x = 501,001.07

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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.