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Finding the Fourth Proportional to 668,926.33, 923,113.51 and 362,995

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Solution

The fourth proportional to 668,926.33, 923,113.51 and 362,995 is: 500,930.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,926.33 : 923,113.51 = 362,995 : x
  2. Step 2: Convert to fraction form
    668,926.33/923,113.51 = 362,995/x
  3. Step 3: Cross multiply
    668,926.33x = 923,113.51 × 362,995
  4. Step 4: Simplify right side
    668,926.33x = 335,085,588,562.45
  5. Step 5: Solve for x
    x = 335,085,588,562.45/668,926.33
  6. Step 6: Final answer
    x = 500,930.48

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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.