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Finding the Fourth Proportional to 347,959.80, 488,543.40 and 347,959.80

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Solution

The fourth proportional to 347,959.80, 488,543.40 and 347,959.80 is: 488,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,959.80 : 488,543.40 = 347,959.80 : x
  2. Step 2: Convert to fraction form
    347,959.80/488,543.40 = 347,959.80/x
  3. Step 3: Cross multiply
    347,959.80x = 488,543.40 × 347,959.80
  4. Step 4: Simplify right side
    347,959.80x = 169,993,463,755.32
  5. Step 5: Solve for x
    x = 169,993,463,755.32/347,959.80
  6. Step 6: Final answer
    x = 488,543.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.