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Finding the Fourth Proportional to 408,172.71, 563,280.39 and 226,901.46

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Solution

The fourth proportional to 408,172.71, 563,280.39 and 226,901.46 is: 313,125.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,172.71 : 563,280.39 = 226,901.46 : x
  2. Step 2: Convert to fraction form
    408,172.71/563,280.39 = 226,901.46/x
  3. Step 3: Cross multiply
    408,172.71x = 563,280.39 × 226,901.46
  4. Step 4: Simplify right side
    408,172.71x = 127,809,142,880.37
  5. Step 5: Solve for x
    x = 127,809,142,880.37/408,172.71
  6. Step 6: Final answer
    x = 313,125.15

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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.