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Finding the Fourth Proportional to 471,900.21, 707,150.34 and 346,628.85

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Solution

The fourth proportional to 471,900.21, 707,150.34 and 346,628.85 is: 519,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,900.21 : 707,150.34 = 346,628.85 : x
  2. Step 2: Convert to fraction form
    471,900.21/707,150.34 = 346,628.85/x
  3. Step 3: Cross multiply
    471,900.21x = 707,150.34 × 346,628.85
  4. Step 4: Simplify right side
    471,900.21x = 245,118,709,131.31
  5. Step 5: Solve for x
    x = 245,118,709,131.31/471,900.21
  6. Step 6: Final answer
    x = 519,429.12

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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.