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Finding the Fourth Proportional to 613,788.32, 846,994.56 and 338,092.58

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Solution

The fourth proportional to 613,788.32, 846,994.56 and 338,092.58 is: 466,549.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,788.32 : 846,994.56 = 338,092.58 : x
  2. Step 2: Convert to fraction form
    613,788.32/846,994.56 = 338,092.58/x
  3. Step 3: Cross multiply
    613,788.32x = 846,994.56 × 338,092.58
  4. Step 4: Simplify right side
    613,788.32x = 286,362,576,036.37
  5. Step 5: Solve for x
    x = 286,362,576,036.37/613,788.32
  6. Step 6: Final answer
    x = 466,549.41

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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.