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Finding the Fourth Proportional to 587,933.28, 811,285.80 and 346,200

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Solution

The fourth proportional to 587,933.28, 811,285.80 and 346,200 is: 477,719.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,933.28 : 811,285.80 = 346,200 : x
  2. Step 2: Convert to fraction form
    587,933.28/811,285.80 = 346,200/x
  3. Step 3: Cross multiply
    587,933.28x = 811,285.80 × 346,200
  4. Step 4: Simplify right side
    587,933.28x = 280,867,143,960
  5. Step 5: Solve for x
    x = 280,867,143,960/587,933.28
  6. Step 6: Final answer
    x = 477,719.42

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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.