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Finding the Fourth Proportional to 673,433.12, 929,334.48 and 371,645.60

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Solution

The fourth proportional to 673,433.12, 929,334.48 and 371,645.60 is: 512,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,433.12 : 929,334.48 = 371,645.60 : x
  2. Step 2: Convert to fraction form
    673,433.12/929,334.48 = 371,645.60/x
  3. Step 3: Cross multiply
    673,433.12x = 929,334.48 × 371,645.60
  4. Step 4: Simplify right side
    673,433.12x = 345,383,070,420.29
  5. Step 5: Solve for x
    x = 345,383,070,420.29/673,433.12
  6. Step 6: Final answer
    x = 512,869.15

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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.