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Finding the Fourth Proportional to 422,977.06, 583,062.59 and 259,330.60

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Solution

The fourth proportional to 422,977.06, 583,062.59 and 259,330.60 is: 357,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,977.06 : 583,062.59 = 259,330.60 : x
  2. Step 2: Convert to fraction form
    422,977.06/583,062.59 = 259,330.60/x
  3. Step 3: Cross multiply
    422,977.06x = 583,062.59 × 259,330.60
  4. Step 4: Simplify right side
    422,977.06x = 151,205,968,386.94
  5. Step 5: Solve for x
    x = 151,205,968,386.94/422,977.06
  6. Step 6: Final answer
    x = 357,480.31

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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.