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Finding the Fourth Proportional to 707,551.32, 976,408.17 and 385,255.56

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Solution

The fourth proportional to 707,551.32, 976,408.17 and 385,255.56 is: 531,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,551.32 : 976,408.17 = 385,255.56 : x
  2. Step 2: Convert to fraction form
    707,551.32/976,408.17 = 385,255.56/x
  3. Step 3: Cross multiply
    707,551.32x = 976,408.17 × 385,255.56
  4. Step 4: Simplify right side
    707,551.32x = 376,166,676,321.93
  5. Step 5: Solve for x
    x = 376,166,676,321.93/707,551.32
  6. Step 6: Final answer
    x = 531,645.78

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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.