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Finding the Fourth Proportional to 341,634.70, 512,439.90 and 154,646.20

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Solution

The fourth proportional to 341,634.70, 512,439.90 and 154,646.20 is: 231,963.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,634.70 : 512,439.90 = 154,646.20 : x
  2. Step 2: Convert to fraction form
    341,634.70/512,439.90 = 154,646.20/x
  3. Step 3: Cross multiply
    341,634.70x = 512,439.90 × 154,646.20
  4. Step 4: Simplify right side
    341,634.70x = 79,246,883,263.38
  5. Step 5: Solve for x
    x = 79,246,883,263.38/341,634.70
  6. Step 6: Final answer
    x = 231,963.80

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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.