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Finding the Fourth Proportional to 453,673.10, 680,052.20 and 285,313.74

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Solution

The fourth proportional to 453,673.10, 680,052.20 and 285,313.74 is: 427,682.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,673.10 : 680,052.20 = 285,313.74 : x
  2. Step 2: Convert to fraction form
    453,673.10/680,052.20 = 285,313.74/x
  3. Step 3: Cross multiply
    453,673.10x = 680,052.20 × 285,313.74
  4. Step 4: Simplify right side
    453,673.10x = 194,028,235,150.66
  5. Step 5: Solve for x
    x = 194,028,235,150.66/453,673.10
  6. Step 6: Final answer
    x = 427,682.92

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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.