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Finding the Fourth Proportional to 693,375.30, 956,839.53 and 387,454.21

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Solution

The fourth proportional to 693,375.30, 956,839.53 and 387,454.21 is: 534,676.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,375.30 : 956,839.53 = 387,454.21 : x
  2. Step 2: Convert to fraction form
    693,375.30/956,839.53 = 387,454.21/x
  3. Step 3: Cross multiply
    693,375.30x = 956,839.53 × 387,454.21
  4. Step 4: Simplify right side
    693,375.30x = 370,731,503,253.78
  5. Step 5: Solve for x
    x = 370,731,503,253.78/693,375.30
  6. Step 6: Final answer
    x = 534,676.54

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1.5x scale

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.