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Finding the Fourth Proportional to 633,137.33, 873,723.54 and 342,741.46

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Solution

The fourth proportional to 633,137.33, 873,723.54 and 342,741.46 is: 472,979.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,137.33 : 873,723.54 = 342,741.46 : x
  2. Step 2: Convert to fraction form
    633,137.33/873,723.54 = 342,741.46/x
  3. Step 3: Cross multiply
    633,137.33x = 873,723.54 × 342,741.46
  4. Step 4: Simplify right side
    633,137.33x = 299,461,279,551.66
  5. Step 5: Solve for x
    x = 299,461,279,551.66/633,137.33
  6. Step 6: Final answer
    x = 472,979.98

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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.