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Finding the Fourth Proportional to 613,820.88, 846,843.48 and 612,874.80

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Solution

The fourth proportional to 613,820.88, 846,843.48 and 612,874.80 is: 845,538.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,820.88 : 846,843.48 = 612,874.80 : x
  2. Step 2: Convert to fraction form
    613,820.88/846,843.48 = 612,874.80/x
  3. Step 3: Cross multiply
    613,820.88x = 846,843.48 × 612,874.80
  4. Step 4: Simplify right side
    613,820.88x = 519,009,028,436.30
  5. Step 5: Solve for x
    x = 519,009,028,436.30/613,820.88
  6. Step 6: Final answer
    x = 845,538.24

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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.