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Finding the Fourth Proportional to 369,906.32, 554,728.20 and 133,185.44

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Solution

The fourth proportional to 369,906.32, 554,728.20 and 133,185.44 is: 199,730.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,906.32 : 554,728.20 = 133,185.44 : x
  2. Step 2: Convert to fraction form
    369,906.32/554,728.20 = 133,185.44/x
  3. Step 3: Cross multiply
    369,906.32x = 554,728.20 × 133,185.44
  4. Step 4: Simplify right side
    369,906.32x = 73,881,719,397.41
  5. Step 5: Solve for x
    x = 73,881,719,397.41/369,906.32
  6. Step 6: Final answer
    x = 199,730.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.