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Finding the Fourth Proportional to 614,331.69, 920,773.76 and 276,977.37

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Solution

The fourth proportional to 614,331.69, 920,773.76 and 276,977.37 is: 415,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,331.69 : 920,773.76 = 276,977.37 : x
  2. Step 2: Convert to fraction form
    614,331.69/920,773.76 = 276,977.37/x
  3. Step 3: Cross multiply
    614,331.69x = 920,773.76 × 276,977.37
  4. Step 4: Simplify right side
    614,331.69x = 255,033,498,035.82
  5. Step 5: Solve for x
    x = 255,033,498,035.82/614,331.69
  6. Step 6: Final answer
    x = 415,139.74

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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.