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Finding the Fourth Proportional to 353,568.58, 530,352.87 and 291,107.86

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Solution

The fourth proportional to 353,568.58, 530,352.87 and 291,107.86 is: 436,661.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,568.58 : 530,352.87 = 291,107.86 : x
  2. Step 2: Convert to fraction form
    353,568.58/530,352.87 = 291,107.86/x
  3. Step 3: Cross multiply
    353,568.58x = 530,352.87 × 291,107.86
  4. Step 4: Simplify right side
    353,568.58x = 154,389,889,030.56
  5. Step 5: Solve for x
    x = 154,389,889,030.56/353,568.58
  6. Step 6: Final answer
    x = 436,661.79

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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.