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Finding the Fourth Proportional to 341,646.30, 512,469.45 and 217,230.30

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Solution

The fourth proportional to 341,646.30, 512,469.45 and 217,230.30 is: 325,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,646.30 : 512,469.45 = 217,230.30 : x
  2. Step 2: Convert to fraction form
    341,646.30/512,469.45 = 217,230.30/x
  3. Step 3: Cross multiply
    341,646.30x = 512,469.45 × 217,230.30
  4. Step 4: Simplify right side
    341,646.30x = 111,323,892,364.34
  5. Step 5: Solve for x
    x = 111,323,892,364.34/341,646.30
  6. Step 6: Final answer
    x = 325,845.45

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Similar ratio
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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.