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Finding the Fourth Proportional to 703,203.12, 1,054,688.04 and 253,837.80

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Solution

The fourth proportional to 703,203.12, 1,054,688.04 and 253,837.80 is: 380,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,203.12 : 1,054,688.04 = 253,837.80 : x
  2. Step 2: Convert to fraction form
    703,203.12/1,054,688.04 = 253,837.80/x
  3. Step 3: Cross multiply
    703,203.12x = 1,054,688.04 × 253,837.80
  4. Step 4: Simplify right side
    703,203.12x = 267,719,691,759.91
  5. Step 5: Solve for x
    x = 267,719,691,759.91/703,203.12
  6. Step 6: Final answer
    x = 380,714.60

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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.