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Finding the Fourth Proportional to 466,680.93, 643,851.25 and 305,627.82

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Solution

The fourth proportional to 466,680.93, 643,851.25 and 305,627.82 is: 421,656.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,680.93 : 643,851.25 = 305,627.82 : x
  2. Step 2: Convert to fraction form
    466,680.93/643,851.25 = 305,627.82/x
  3. Step 3: Cross multiply
    466,680.93x = 643,851.25 × 305,627.82
  4. Step 4: Simplify right side
    466,680.93x = 196,778,853,941.78
  5. Step 5: Solve for x
    x = 196,778,853,941.78/466,680.93
  6. Step 6: Final answer
    x = 421,656.09

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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.