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Finding the Fourth Proportional to 633,321.92, 873,964.68 and 346,834.64

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Solution

The fourth proportional to 633,321.92, 873,964.68 and 346,834.64 is: 478,621.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,321.92 : 873,964.68 = 346,834.64 : x
  2. Step 2: Convert to fraction form
    633,321.92/873,964.68 = 346,834.64/x
  3. Step 3: Cross multiply
    633,321.92x = 873,964.68 × 346,834.64
  4. Step 4: Simplify right side
    633,321.92x = 303,121,225,160.52
  5. Step 5: Solve for x
    x = 303,121,225,160.52/633,321.92
  6. Step 6: Final answer
    x = 478,621.09

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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.