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Finding the Fourth Proportional to 477,695.28, 659,237.64 and 273,785.55

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Solution

The fourth proportional to 477,695.28, 659,237.64 and 273,785.55 is: 377,834.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,695.28 : 659,237.64 = 273,785.55 : x
  2. Step 2: Convert to fraction form
    477,695.28/659,237.64 = 273,785.55/x
  3. Step 3: Cross multiply
    477,695.28x = 659,237.64 × 273,785.55
  4. Step 4: Simplify right side
    477,695.28x = 180,489,739,848.10
  5. Step 5: Solve for x
    x = 180,489,739,848.10/477,695.28
  6. Step 6: Final answer
    x = 377,834.46

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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.