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Finding the Fourth Proportional to 575,076.16, 793,618.32 and 320,442.88

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Solution

The fourth proportional to 575,076.16, 793,618.32 and 320,442.88 is: 442,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,076.16 : 793,618.32 = 320,442.88 : x
  2. Step 2: Convert to fraction form
    575,076.16/793,618.32 = 320,442.88/x
  3. Step 3: Cross multiply
    575,076.16x = 793,618.32 × 320,442.88
  4. Step 4: Simplify right side
    575,076.16x = 254,309,340,081.56
  5. Step 5: Solve for x
    x = 254,309,340,081.56/575,076.16
  6. Step 6: Final answer
    x = 442,218.54

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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.