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Finding the Fourth Proportional to 624,367.10, 861,534.26 and 366,146.64

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Solution

The fourth proportional to 624,367.10, 861,534.26 and 366,146.64 is: 505,228.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,367.10 : 861,534.26 = 366,146.64 : x
  2. Step 2: Convert to fraction form
    624,367.10/861,534.26 = 366,146.64/x
  3. Step 3: Cross multiply
    624,367.10x = 861,534.26 × 366,146.64
  4. Step 4: Simplify right side
    624,367.10x = 315,447,874,543.89
  5. Step 5: Solve for x
    x = 315,447,874,543.89/624,367.10
  6. Step 6: Final answer
    x = 505,228.21

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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.