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Finding the Fourth Proportional to 603,868.12, 905,781.31 and 154,592.84

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Solution

The fourth proportional to 603,868.12, 905,781.31 and 154,592.84 is: 231,883.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,868.12 : 905,781.31 = 154,592.84 : x
  2. Step 2: Convert to fraction form
    603,868.12/905,781.31 = 154,592.84/x
  3. Step 3: Cross multiply
    603,868.12x = 905,781.31 × 154,592.84
  4. Step 4: Simplify right side
    603,868.12x = 140,027,307,009.79
  5. Step 5: Solve for x
    x = 140,027,307,009.79/603,868.12
  6. Step 6: Final answer
    x = 231,883.92

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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.