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Finding the Fourth Proportional to 865,169.12, 1,193,760 and 483,137.12

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Solution

The fourth proportional to 865,169.12, 1,193,760 and 483,137.12 is: 666,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,169.12 : 1,193,760 = 483,137.12 : x
  2. Step 2: Convert to fraction form
    865,169.12/1,193,760 = 483,137.12/x
  3. Step 3: Cross multiply
    865,169.12x = 1,193,760 × 483,137.12
  4. Step 4: Simplify right side
    865,169.12x = 576,749,768,371.20
  5. Step 5: Solve for x
    x = 576,749,768,371.20/865,169.12
  6. Step 6: Final answer
    x = 666,632.40

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Similar ratio
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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.