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Finding the Fourth Proportional to 986,375.36, 1,361,198 and 533,666.36

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Solution

The fourth proportional to 986,375.36, 1,361,198 and 533,666.36 is: 736,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,375.36 : 1,361,198 = 533,666.36 : x
  2. Step 2: Convert to fraction form
    986,375.36/1,361,198 = 533,666.36/x
  3. Step 3: Cross multiply
    986,375.36x = 1,361,198 × 533,666.36
  4. Step 4: Simplify right side
    986,375.36x = 726,425,581,899.28
  5. Step 5: Solve for x
    x = 726,425,581,899.28/986,375.36
  6. Step 6: Final answer
    x = 736,459.58

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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.