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Finding the Fourth Proportional to 633,247.30, 873,855.03 and 346,762.45

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Solution

The fourth proportional to 633,247.30, 873,855.03 and 346,762.45 is: 478,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,247.30 : 873,855.03 = 346,762.45 : x
  2. Step 2: Convert to fraction form
    633,247.30/873,855.03 = 346,762.45/x
  3. Step 3: Cross multiply
    633,247.30x = 873,855.03 × 346,762.45
  4. Step 4: Simplify right side
    633,247.30x = 303,020,111,147.62
  5. Step 5: Solve for x
    x = 303,020,111,147.62/633,247.30
  6. Step 6: Final answer
    x = 478,517.81

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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.