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Finding the Fourth Proportional to 349,045.76, 481,666.56 and 198,122.24

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Solution

The fourth proportional to 349,045.76, 481,666.56 and 198,122.24 is: 273,399.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,045.76 : 481,666.56 = 198,122.24 : x
  2. Step 2: Convert to fraction form
    349,045.76/481,666.56 = 198,122.24/x
  3. Step 3: Cross multiply
    349,045.76x = 481,666.56 × 198,122.24
  4. Step 4: Simplify right side
    349,045.76x = 95,428,857,800.29
  5. Step 5: Solve for x
    x = 95,428,857,800.29/349,045.76
  6. Step 6: Final answer
    x = 273,399.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.