Home / 786,892.38-1,086,003.63-447,411.66

Finding the Fourth Proportional to 786,892.38, 1,086,003.63 and 447,411.66

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Solution

The fourth proportional to 786,892.38, 1,086,003.63 and 447,411.66 is: 617,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,892.38 : 1,086,003.63 = 447,411.66 : x
  2. Step 2: Convert to fraction form
    786,892.38/1,086,003.63 = 447,411.66/x
  3. Step 3: Cross multiply
    786,892.38x = 1,086,003.63 × 447,411.66
  4. Step 4: Simplify right side
    786,892.38x = 485,890,686,864.33
  5. Step 5: Solve for x
    x = 485,890,686,864.33/786,892.38
  6. Step 6: Final answer
    x = 617,480.48

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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.