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Finding the Fourth Proportional to 612,703.20, 844,593.30 and 430,919.76

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Solution

The fourth proportional to 612,703.20, 844,593.30 and 430,919.76 is: 594,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,703.20 : 844,593.30 = 430,919.76 : x
  2. Step 2: Convert to fraction form
    612,703.20/844,593.30 = 430,919.76/x
  3. Step 3: Cross multiply
    612,703.20x = 844,593.30 × 430,919.76
  4. Step 4: Simplify right side
    612,703.20x = 363,951,942,133.61
  5. Step 5: Solve for x
    x = 363,951,942,133.61/612,703.20
  6. Step 6: Final answer
    x = 594,010.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.