Home / 865,162.20-1,193,805.90-483,140.28

Finding the Fourth Proportional to 865,162.20, 1,193,805.90 and 483,140.28

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Solution

The fourth proportional to 865,162.20, 1,193,805.90 and 483,140.28 is: 666,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,162.20 : 1,193,805.90 = 483,140.28 : x
  2. Step 2: Convert to fraction form
    865,162.20/1,193,805.90 = 483,140.28/x
  3. Step 3: Cross multiply
    865,162.20x = 1,193,805.90 × 483,140.28
  4. Step 4: Simplify right side
    865,162.20x = 576,775,716,791.65
  5. Step 5: Solve for x
    x = 576,775,716,791.65/865,162.20
  6. Step 6: Final answer
    x = 666,667.73

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Double scale
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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.