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Finding the Fourth Proportional to 613,471.12, 846,393.24 and 371,676.40

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Solution

The fourth proportional to 613,471.12, 846,393.24 and 371,676.40 is: 512,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,471.12 : 846,393.24 = 371,676.40 : x
  2. Step 2: Convert to fraction form
    613,471.12/846,393.24 = 371,676.40/x
  3. Step 3: Cross multiply
    613,471.12x = 846,393.24 × 371,676.40
  4. Step 4: Simplify right side
    613,471.12x = 314,584,392,427.54
  5. Step 5: Solve for x
    x = 314,584,392,427.54/613,471.12
  6. Step 6: Final answer
    x = 512,794.14

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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.