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Finding the Fourth Proportional to 632,380.50, 872,969.67 and 403,244.94

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Solution

The fourth proportional to 632,380.50, 872,969.67 and 403,244.94 is: 556,659.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,380.50 : 872,969.67 = 403,244.94 : x
  2. Step 2: Convert to fraction form
    632,380.50/872,969.67 = 403,244.94/x
  3. Step 3: Cross multiply
    632,380.50x = 872,969.67 × 403,244.94
  4. Step 4: Simplify right side
    632,380.50x = 352,020,602,200.97
  5. Step 5: Solve for x
    x = 352,020,602,200.97/632,380.50
  6. Step 6: Final answer
    x = 556,659.48

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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.