Home / 781,453.05-1,078,419.06-441,921.30

Finding the Fourth Proportional to 781,453.05, 1,078,419.06 and 441,921.30

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Solution

The fourth proportional to 781,453.05, 1,078,419.06 and 441,921.30 is: 609,859.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,453.05 : 1,078,419.06 = 441,921.30 : x
  2. Step 2: Convert to fraction form
    781,453.05/1,078,419.06 = 441,921.30/x
  3. Step 3: Cross multiply
    781,453.05x = 1,078,419.06 × 441,921.30
  4. Step 4: Simplify right side
    781,453.05x = 476,576,352,939.98
  5. Step 5: Solve for x
    x = 476,576,352,939.98/781,453.05
  6. Step 6: Final answer
    x = 609,859.23

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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.