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Finding the Fourth Proportional to 632,889.10, 873,379.56 and 342,493.93

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Solution

The fourth proportional to 632,889.10, 873,379.56 and 342,493.93 is: 472,637.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,889.10 : 873,379.56 = 342,493.93 : x
  2. Step 2: Convert to fraction form
    632,889.10/873,379.56 = 342,493.93/x
  3. Step 3: Cross multiply
    632,889.10x = 873,379.56 × 342,493.93
  4. Step 4: Simplify right side
    632,889.10x = 299,127,197,886.07
  5. Step 5: Solve for x
    x = 299,127,197,886.07/632,889.10
  6. Step 6: Final answer
    x = 472,637.62

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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.