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Finding the Fourth Proportional to 488,419.07, 674,164.62 and 297,526.77

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Solution

The fourth proportional to 488,419.07, 674,164.62 and 297,526.77 is: 410,676.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,419.07 : 674,164.62 = 297,526.77 : x
  2. Step 2: Convert to fraction form
    488,419.07/674,164.62 = 297,526.77/x
  3. Step 3: Cross multiply
    488,419.07x = 674,164.62 × 297,526.77
  4. Step 4: Simplify right side
    488,419.07x = 200,582,021,836.88
  5. Step 5: Solve for x
    x = 200,582,021,836.88/488,419.07
  6. Step 6: Final answer
    x = 410,676.07

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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.