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Finding the Fourth Proportional to 351,817.68, 527,726.67 and 85,576.56

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Solution

The fourth proportional to 351,817.68, 527,726.67 and 85,576.56 is: 128,364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,817.68 : 527,726.67 = 85,576.56 : x
  2. Step 2: Convert to fraction form
    351,817.68/527,726.67 = 85,576.56/x
  3. Step 3: Cross multiply
    351,817.68x = 527,726.67 × 85,576.56
  4. Step 4: Simplify right side
    351,817.68x = 45,161,033,038.86
  5. Step 5: Solve for x
    x = 45,161,033,038.86/351,817.68
  6. Step 6: Final answer
    x = 128,364.88

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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.