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Finding the Fourth Proportional to 613,118.30, 846,176.92 and 371,393.78

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Solution

The fourth proportional to 613,118.30, 846,176.92 and 371,393.78 is: 512,568.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,118.30 : 846,176.92 = 371,393.78 : x
  2. Step 2: Convert to fraction form
    613,118.30/846,176.92 = 371,393.78/x
  3. Step 3: Cross multiply
    613,118.30x = 846,176.92 × 371,393.78
  4. Step 4: Simplify right side
    613,118.30x = 314,264,844,867.56
  5. Step 5: Solve for x
    x = 314,264,844,867.56/613,118.30
  6. Step 6: Final answer
    x = 512,568.04

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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.