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Finding the Fourth Proportional to 529,617.06, 730,693.66 and 300,156.34

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Solution

The fourth proportional to 529,617.06, 730,693.66 and 300,156.34 is: 414,114.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,617.06 : 730,693.66 = 300,156.34 : x
  2. Step 2: Convert to fraction form
    529,617.06/730,693.66 = 300,156.34/x
  3. Step 3: Cross multiply
    529,617.06x = 730,693.66 × 300,156.34
  4. Step 4: Simplify right side
    529,617.06x = 219,322,334,646.80
  5. Step 5: Solve for x
    x = 219,322,334,646.80/529,617.06
  6. Step 6: Final answer
    x = 414,114.94

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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.