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Finding the Fourth Proportional to 505,804.38, 698,001.87 and 276,356.76

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Solution

The fourth proportional to 505,804.38, 698,001.87 and 276,356.76 is: 381,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,804.38 : 698,001.87 = 276,356.76 : x
  2. Step 2: Convert to fraction form
    505,804.38/698,001.87 = 276,356.76/x
  3. Step 3: Cross multiply
    505,804.38x = 698,001.87 × 276,356.76
  4. Step 4: Simplify right side
    505,804.38x = 192,897,535,267.14
  5. Step 5: Solve for x
    x = 192,897,535,267.14/505,804.38
  6. Step 6: Final answer
    x = 381,367.86

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1.5x scale

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.