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Finding the Fourth Proportional to 529,038.90, 730,189.92 and 347,767.57

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Solution

The fourth proportional to 529,038.90, 730,189.92 and 347,767.57 is: 479,995.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,038.90 : 730,189.92 = 347,767.57 : x
  2. Step 2: Convert to fraction form
    529,038.90/730,189.92 = 347,767.57/x
  3. Step 3: Cross multiply
    529,038.90x = 730,189.92 × 347,767.57
  4. Step 4: Simplify right side
    529,038.90x = 253,936,374,116.89
  5. Step 5: Solve for x
    x = 253,936,374,116.89/529,038.90
  6. Step 6: Final answer
    x = 479,995.66

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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.