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Finding the Fourth Proportional to 633,222.55, 873,835.21 and 346,737.43

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Solution

The fourth proportional to 633,222.55, 873,835.21 and 346,737.43 is: 478,491.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,222.55 : 873,835.21 = 346,737.43 : x
  2. Step 2: Convert to fraction form
    633,222.55/873,835.21 = 346,737.43/x
  3. Step 3: Cross multiply
    633,222.55x = 873,835.21 × 346,737.43
  4. Step 4: Simplify right side
    633,222.55x = 302,991,374,958.91
  5. Step 5: Solve for x
    x = 302,991,374,958.91/633,222.55
  6. Step 6: Final answer
    x = 478,491.13

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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.