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Finding the Fourth Proportional to 341,569.80, 512,354.70 and 275,139.68

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Solution

The fourth proportional to 341,569.80, 512,354.70 and 275,139.68 is: 412,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,569.80 : 512,354.70 = 275,139.68 : x
  2. Step 2: Convert to fraction form
    341,569.80/512,354.70 = 275,139.68/x
  3. Step 3: Cross multiply
    341,569.80x = 512,354.70 × 275,139.68
  4. Step 4: Simplify right side
    341,569.80x = 140,969,105,642.72
  5. Step 5: Solve for x
    x = 140,969,105,642.72/341,569.80
  6. Step 6: Final answer
    x = 412,709.51

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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.