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Finding the Fourth Proportional to 482,709.40, 723,845.40 and 183,090.40

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Solution

The fourth proportional to 482,709.40, 723,845.40 and 183,090.40 is: 274,552.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,709.40 : 723,845.40 = 183,090.40 : x
  2. Step 2: Convert to fraction form
    482,709.40/723,845.40 = 183,090.40/x
  3. Step 3: Cross multiply
    482,709.40x = 723,845.40 × 183,090.40
  4. Step 4: Simplify right side
    482,709.40x = 132,529,143,824.16
  5. Step 5: Solve for x
    x = 132,529,143,824.16/482,709.40
  6. Step 6: Final answer
    x = 274,552.65

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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.