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Finding the Fourth Proportional to 673,272, 929,115.36 and 371,466

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Solution

The fourth proportional to 673,272, 929,115.36 and 371,466 is: 512,623.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,272 : 929,115.36 = 371,466 : x
  2. Step 2: Convert to fraction form
    673,272/929,115.36 = 371,466/x
  3. Step 3: Cross multiply
    673,272x = 929,115.36 × 371,466
  4. Step 4: Simplify right side
    673,272x = 345,134,766,317.76
  5. Step 5: Solve for x
    x = 345,134,766,317.76/673,272
  6. Step 6: Final answer
    x = 512,623.08

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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.