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Finding the Fourth Proportional to 351,836.42, 527,755.01 and 85,596.93

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Solution

The fourth proportional to 351,836.42, 527,755.01 and 85,596.93 is: 128,395.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,836.42 : 527,755.01 = 85,596.93 : x
  2. Step 2: Convert to fraction form
    351,836.42/527,755.01 = 85,596.93/x
  3. Step 3: Cross multiply
    351,836.42x = 527,755.01 × 85,596.93
  4. Step 4: Simplify right side
    351,836.42x = 45,174,208,648.12
  5. Step 5: Solve for x
    x = 45,174,208,648.12/351,836.42
  6. Step 6: Final answer
    x = 128,395.49

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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.