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Finding the Fourth Proportional to 284,876.40, 427,621.80 and 160,460.40

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Solution

The fourth proportional to 284,876.40, 427,621.80 and 160,460.40 is: 240,863.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,876.40 : 427,621.80 = 160,460.40 : x
  2. Step 2: Convert to fraction form
    284,876.40/427,621.80 = 160,460.40/x
  3. Step 3: Cross multiply
    284,876.40x = 427,621.80 × 160,460.40
  4. Step 4: Simplify right side
    284,876.40x = 68,616,365,076.72
  5. Step 5: Solve for x
    x = 68,616,365,076.72/284,876.40
  6. Step 6: Final answer
    x = 240,863.63

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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.