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Finding the Fourth Proportional to 445,857.70, 615,283.58 and 254,875.36

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Solution

The fourth proportional to 445,857.70, 615,283.58 and 254,875.36 is: 351,727.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,857.70 : 615,283.58 = 254,875.36 : x
  2. Step 2: Convert to fraction form
    445,857.70/615,283.58 = 254,875.36/x
  3. Step 3: Cross multiply
    445,857.70x = 615,283.58 × 254,875.36
  4. Step 4: Simplify right side
    445,857.70x = 156,820,623,954.59
  5. Step 5: Solve for x
    x = 156,820,623,954.59/445,857.70
  6. Step 6: Final answer
    x = 351,727.97

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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.