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Finding the Fourth Proportional to 405,383.50, 608,173.67 and 124,900.74

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Solution

The fourth proportional to 405,383.50, 608,173.67 and 124,900.74 is: 187,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,383.50 : 608,173.67 = 124,900.74 : x
  2. Step 2: Convert to fraction form
    405,383.50/608,173.67 = 124,900.74/x
  3. Step 3: Cross multiply
    405,383.50x = 608,173.67 × 124,900.74
  4. Step 4: Simplify right side
    405,383.50x = 75,961,341,431.52
  5. Step 5: Solve for x
    x = 75,961,341,431.52/405,383.50
  6. Step 6: Final answer
    x = 187,381.43

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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.