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Finding the Fourth Proportional to 665,572.44, 919,247.66 and 447,402.32

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Solution

The fourth proportional to 665,572.44, 919,247.66 and 447,402.32 is: 617,924.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,572.44 : 919,247.66 = 447,402.32 : x
  2. Step 2: Convert to fraction form
    665,572.44/919,247.66 = 447,402.32/x
  3. Step 3: Cross multiply
    665,572.44x = 919,247.66 × 447,402.32
  4. Step 4: Simplify right side
    665,572.44x = 411,273,535,738.57
  5. Step 5: Solve for x
    x = 411,273,535,738.57/665,572.44
  6. Step 6: Final answer
    x = 617,924.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.