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Finding the Fourth Proportional to 445,577.94, 615,136.41 and 344,128.41

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Solution

The fourth proportional to 445,577.94, 615,136.41 and 344,128.41 is: 475,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,577.94 : 615,136.41 = 344,128.41 : x
  2. Step 2: Convert to fraction form
    445,577.94/615,136.41 = 344,128.41/x
  3. Step 3: Cross multiply
    445,577.94x = 615,136.41 × 344,128.41
  4. Step 4: Simplify right side
    445,577.94x = 211,685,914,706.41
  5. Step 5: Solve for x
    x = 211,685,914,706.41/445,577.94
  6. Step 6: Final answer
    x = 475,081.68

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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.