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Finding the Fourth Proportional to 693,770.37, 957,410.22 and 387,863.74

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Solution

The fourth proportional to 693,770.37, 957,410.22 and 387,863.74 is: 535,255.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,770.37 : 957,410.22 = 387,863.74 : x
  2. Step 2: Convert to fraction form
    693,770.37/957,410.22 = 387,863.74/x
  3. Step 3: Cross multiply
    693,770.37x = 957,410.22 × 387,863.74
  4. Step 4: Simplify right side
    693,770.37x = 371,344,708,643.42
  5. Step 5: Solve for x
    x = 371,344,708,643.42/693,770.37
  6. Step 6: Final answer
    x = 535,255.94

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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.