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Finding the Fourth Proportional to 529,699.41, 730,999.62 and 287,998.26

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Solution

The fourth proportional to 529,699.41, 730,999.62 and 287,998.26 is: 397,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,699.41 : 730,999.62 = 287,998.26 : x
  2. Step 2: Convert to fraction form
    529,699.41/730,999.62 = 287,998.26/x
  3. Step 3: Cross multiply
    529,699.41x = 730,999.62 × 287,998.26
  4. Step 4: Simplify right side
    529,699.41x = 210,526,618,620.66
  5. Step 5: Solve for x
    x = 210,526,618,620.66/529,699.41
  6. Step 6: Final answer
    x = 397,445.45

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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.