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Finding the Fourth Proportional to 405,715.40, 608,573.10 and 184,099.40

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Solution

The fourth proportional to 405,715.40, 608,573.10 and 184,099.40 is: 276,149.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,715.40 : 608,573.10 = 184,099.40 : x
  2. Step 2: Convert to fraction form
    405,715.40/608,573.10 = 184,099.40/x
  3. Step 3: Cross multiply
    405,715.40x = 608,573.10 × 184,099.40
  4. Step 4: Simplify right side
    405,715.40x = 112,037,942,566.14
  5. Step 5: Solve for x
    x = 112,037,942,566.14/405,715.40
  6. Step 6: Final answer
    x = 276,149.10

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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.