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Finding the Fourth Proportional to 673,227, 929,108.72 and 382,929.48

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Solution

The fourth proportional to 673,227, 929,108.72 and 382,929.48 is: 528,474.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,227 : 929,108.72 = 382,929.48 : x
  2. Step 2: Convert to fraction form
    673,227/929,108.72 = 382,929.48/x
  3. Step 3: Cross multiply
    673,227x = 929,108.72 × 382,929.48
  4. Step 4: Simplify right side
    673,227x = 355,783,119,013.07
  5. Step 5: Solve for x
    x = 355,783,119,013.07/673,227
  6. Step 6: Final answer
    x = 528,474.23

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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.