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Finding the Fourth Proportional to 426,079.28, 587,884.56 and 260,465.44

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Solution

The fourth proportional to 426,079.28, 587,884.56 and 260,465.44 is: 359,378.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,079.28 : 587,884.56 = 260,465.44 : x
  2. Step 2: Convert to fraction form
    426,079.28/587,884.56 = 260,465.44/x
  3. Step 3: Cross multiply
    426,079.28x = 587,884.56 × 260,465.44
  4. Step 4: Simplify right side
    426,079.28x = 153,123,610,589.61
  5. Step 5: Solve for x
    x = 153,123,610,589.61/426,079.28
  6. Step 6: Final answer
    x = 359,378.21

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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.