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Finding the Fourth Proportional to 529,369.48, 730,234.20 and 325,278.64

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Solution

The fourth proportional to 529,369.48, 730,234.20 and 325,278.64 is: 448,702.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,369.48 : 730,234.20 = 325,278.64 : x
  2. Step 2: Convert to fraction form
    529,369.48/730,234.20 = 325,278.64/x
  3. Step 3: Cross multiply
    529,369.48x = 730,234.20 × 325,278.64
  4. Step 4: Simplify right side
    529,369.48x = 237,529,587,457.49
  5. Step 5: Solve for x
    x = 237,529,587,457.49/529,369.48
  6. Step 6: Final answer
    x = 448,702.84

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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.