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Finding the Fourth Proportional to 633,222.23, 873,845.21 and 346,739.81

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Solution

The fourth proportional to 633,222.23, 873,845.21 and 346,739.81 is: 478,500.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,222.23 : 873,845.21 = 346,739.81 : x
  2. Step 2: Convert to fraction form
    633,222.23/873,845.21 = 346,739.81/x
  3. Step 3: Cross multiply
    633,222.23x = 873,845.21 × 346,739.81
  4. Step 4: Simplify right side
    633,222.23x = 302,996,918,582.43
  5. Step 5: Solve for x
    x = 302,996,918,582.43/633,222.23
  6. Step 6: Final answer
    x = 478,500.13

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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.