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Finding the Fourth Proportional to 632,866.48, 873,352.55 and 342,477.83

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Solution

The fourth proportional to 632,866.48, 873,352.55 and 342,477.83 is: 472,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,866.48 : 873,352.55 = 342,477.83 : x
  2. Step 2: Convert to fraction form
    632,866.48/873,352.55 = 342,477.83/x
  3. Step 3: Cross multiply
    632,866.48x = 873,352.55 × 342,477.83
  4. Step 4: Simplify right side
    632,866.48x = 299,103,889,188.54
  5. Step 5: Solve for x
    x = 299,103,889,188.54/632,866.48
  6. Step 6: Final answer
    x = 472,617.68

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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.