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Finding the Fourth Proportional to 575,999.31, 794,879.55 and 321,350.58

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Solution

The fourth proportional to 575,999.31, 794,879.55 and 321,350.58 is: 443,464.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,999.31 : 794,879.55 = 321,350.58 : x
  2. Step 2: Convert to fraction form
    575,999.31/794,879.55 = 321,350.58/x
  3. Step 3: Cross multiply
    575,999.31x = 794,879.55 × 321,350.58
  4. Step 4: Simplify right side
    575,999.31x = 255,435,004,422.64
  5. Step 5: Solve for x
    x = 255,435,004,422.64/575,999.31
  6. Step 6: Final answer
    x = 443,464.08

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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.