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Finding the Fourth Proportional to 578,131.21, 866,898.03 and 253,786.57

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Solution

The fourth proportional to 578,131.21, 866,898.03 and 253,786.57 is: 380,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,131.21 : 866,898.03 = 253,786.57 : x
  2. Step 2: Convert to fraction form
    578,131.21/866,898.03 = 253,786.57/x
  3. Step 3: Cross multiply
    578,131.21x = 866,898.03 × 253,786.57
  4. Step 4: Simplify right side
    578,131.21x = 220,007,077,573.46
  5. Step 5: Solve for x
    x = 220,007,077,573.46/578,131.21
  6. Step 6: Final answer
    x = 380,548.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.