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Finding the Fourth Proportional to 632,366.94, 872,951.04 and 403,231.36

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Solution

The fourth proportional to 632,366.94, 872,951.04 and 403,231.36 is: 556,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,366.94 : 872,951.04 = 403,231.36 : x
  2. Step 2: Convert to fraction form
    632,366.94/872,951.04 = 403,231.36/x
  3. Step 3: Cross multiply
    632,366.94x = 872,951.04 × 403,231.36
  4. Step 4: Simplify right side
    632,366.94x = 352,001,235,072.61
  5. Step 5: Solve for x
    x = 352,001,235,072.61/632,366.94
  6. Step 6: Final answer
    x = 556,640.79

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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.