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Finding the Fourth Proportional to 488,065.16, 673,182.02 and 297,090.78

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Solution

The fourth proportional to 488,065.16, 673,182.02 and 297,090.78 is: 409,773.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,065.16 : 673,182.02 = 297,090.78 : x
  2. Step 2: Convert to fraction form
    488,065.16/673,182.02 = 297,090.78/x
  3. Step 3: Cross multiply
    488,065.16x = 673,182.02 × 297,090.78
  4. Step 4: Simplify right side
    488,065.16x = 199,996,171,403.78
  5. Step 5: Solve for x
    x = 199,996,171,403.78/488,065.16
  6. Step 6: Final answer
    x = 409,773.51

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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.