Home / 781,819.02-1,078,914.42-442,279.98

Finding the Fourth Proportional to 781,819.02, 1,078,914.42 and 442,279.98

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Solution

The fourth proportional to 781,819.02, 1,078,914.42 and 442,279.98 is: 610,348.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,819.02 : 1,078,914.42 = 442,279.98 : x
  2. Step 2: Convert to fraction form
    781,819.02/1,078,914.42 = 442,279.98/x
  3. Step 3: Cross multiply
    781,819.02x = 1,078,914.42 × 442,279.98
  4. Step 4: Simplify right side
    781,819.02x = 477,182,248,099.31
  5. Step 5: Solve for x
    x = 477,182,248,099.31/781,819.02
  6. Step 6: Final answer
    x = 610,348.73

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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.