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Finding the Fourth Proportional to 624,810.74, 862,237.56 and 338,329.94

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Solution

The fourth proportional to 624,810.74, 862,237.56 and 338,329.94 is: 466,894.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,810.74 : 862,237.56 = 338,329.94 : x
  2. Step 2: Convert to fraction form
    624,810.74/862,237.56 = 338,329.94/x
  3. Step 3: Cross multiply
    624,810.74x = 862,237.56 × 338,329.94
  4. Step 4: Simplify right side
    624,810.74x = 291,720,781,940.55
  5. Step 5: Solve for x
    x = 291,720,781,940.55/624,810.74
  6. Step 6: Final answer
    x = 466,894.63

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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.