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Finding the Fourth Proportional to 323,124.61, 445,621.66 and 202,276.90

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Solution

The fourth proportional to 323,124.61, 445,621.66 and 202,276.90 is: 278,960.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,124.61 : 445,621.66 = 202,276.90 : x
  2. Step 2: Convert to fraction form
    323,124.61/445,621.66 = 202,276.90/x
  3. Step 3: Cross multiply
    323,124.61x = 445,621.66 × 202,276.90
  4. Step 4: Simplify right side
    323,124.61x = 90,138,967,957.65
  5. Step 5: Solve for x
    x = 90,138,967,957.65/323,124.61
  6. Step 6: Final answer
    x = 278,960.39

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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.