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Finding the Fourth Proportional to 488,383.30, 732,684.30 and 188,837.20

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Solution

The fourth proportional to 488,383.30, 732,684.30 and 188,837.20 is: 283,298.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,383.30 : 732,684.30 = 188,837.20 : x
  2. Step 2: Convert to fraction form
    488,383.30/732,684.30 = 188,837.20/x
  3. Step 3: Cross multiply
    488,383.30x = 732,684.30 × 188,837.20
  4. Step 4: Simplify right side
    488,383.30x = 138,358,051,695.96
  5. Step 5: Solve for x
    x = 138,358,051,695.96/488,383.30
  6. Step 6: Final answer
    x = 283,298.08

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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.