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Finding the Fourth Proportional to 416,461.80, 575,685.78 and 371,584.56

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Solution

The fourth proportional to 416,461.80, 575,685.78 and 371,584.56 is: 513,650.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,461.80 : 575,685.78 = 371,584.56 : x
  2. Step 2: Convert to fraction form
    416,461.80/575,685.78 = 371,584.56/x
  3. Step 3: Cross multiply
    416,461.80x = 575,685.78 × 371,584.56
  4. Step 4: Simplify right side
    416,461.80x = 213,915,947,259.56
  5. Step 5: Solve for x
    x = 213,915,947,259.56/416,461.80
  6. Step 6: Final answer
    x = 513,650.83

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1.5x scale

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.