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Finding the Fourth Proportional to 341,732.30, 512,598.45 and 141,986.30

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Solution

The fourth proportional to 341,732.30, 512,598.45 and 141,986.30 is: 212,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,732.30 : 512,598.45 = 141,986.30 : x
  2. Step 2: Convert to fraction form
    341,732.30/512,598.45 = 141,986.30/x
  3. Step 3: Cross multiply
    341,732.30x = 512,598.45 × 141,986.30
  4. Step 4: Simplify right side
    341,732.30x = 72,781,957,301.24
  5. Step 5: Solve for x
    x = 72,781,957,301.24/341,732.30
  6. Step 6: Final answer
    x = 212,979.45

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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.