Home / 899,346.78-1,241,169.33-512,178.57

Finding the Fourth Proportional to 899,346.78, 1,241,169.33 and 512,178.57

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Solution

The fourth proportional to 899,346.78, 1,241,169.33 and 512,178.57 is: 706,846.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,346.78 : 1,241,169.33 = 512,178.57 : x
  2. Step 2: Convert to fraction form
    899,346.78/1,241,169.33 = 512,178.57/x
  3. Step 3: Cross multiply
    899,346.78x = 1,241,169.33 × 512,178.57
  4. Step 4: Simplify right side
    899,346.78x = 635,700,332,567.26
  5. Step 5: Solve for x
    x = 635,700,332,567.26/899,346.78
  6. Step 6: Final answer
    x = 706,846.73

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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.