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Finding the Fourth Proportional to 960,172, 1,325,037.36 and 557,789.92

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Solution

The fourth proportional to 960,172, 1,325,037.36 and 557,789.92 is: 769,750.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,172 : 1,325,037.36 = 557,789.92 : x
  2. Step 2: Convert to fraction form
    960,172/1,325,037.36 = 557,789.92/x
  3. Step 3: Cross multiply
    960,172x = 1,325,037.36 × 557,789.92
  4. Step 4: Simplify right side
    960,172x = 739,092,483,031.41
  5. Step 5: Solve for x
    x = 739,092,483,031.41/960,172
  6. Step 6: Final answer
    x = 769,750.09

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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.