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Finding the Fourth Proportional to 277,497.81, 382,627.76 and 205,005.60

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Solution

The fourth proportional to 277,497.81, 382,627.76 and 205,005.60 is: 282,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,497.81 : 382,627.76 = 205,005.60 : x
  2. Step 2: Convert to fraction form
    277,497.81/382,627.76 = 205,005.60/x
  3. Step 3: Cross multiply
    277,497.81x = 382,627.76 × 205,005.60
  4. Step 4: Simplify right side
    277,497.81x = 78,440,832,490.43
  5. Step 5: Solve for x
    x = 78,440,832,490.43/277,497.81
  6. Step 6: Final answer
    x = 282,671.90

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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.