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Finding the Fourth Proportional to 325,612.80, 488,534.40 and 314,092.80

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Solution

The fourth proportional to 325,612.80, 488,534.40 and 314,092.80 is: 471,250.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,612.80 : 488,534.40 = 314,092.80 : x
  2. Step 2: Convert to fraction form
    325,612.80/488,534.40 = 314,092.80/x
  3. Step 3: Cross multiply
    325,612.80x = 488,534.40 × 314,092.80
  4. Step 4: Simplify right side
    325,612.80x = 153,445,137,592.32
  5. Step 5: Solve for x
    x = 153,445,137,592.32/325,612.80
  6. Step 6: Final answer
    x = 471,250.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.