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Finding the Fourth Proportional to 529,505.48, 730,823.91 and 314,604.25

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Solution

The fourth proportional to 529,505.48, 730,823.91 and 314,604.25 is: 434,217.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,505.48 : 730,823.91 = 314,604.25 : x
  2. Step 2: Convert to fraction form
    529,505.48/730,823.91 = 314,604.25/x
  3. Step 3: Cross multiply
    529,505.48x = 730,823.91 × 314,604.25
  4. Step 4: Simplify right side
    529,505.48x = 229,920,308,087.62
  5. Step 5: Solve for x
    x = 229,920,308,087.62/529,505.48
  6. Step 6: Final answer
    x = 434,217.05

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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.