Home / 656,112.87-905,454.94-384,155.31

Finding the Fourth Proportional to 656,112.87, 905,454.94 and 384,155.31

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Solution

The fourth proportional to 656,112.87, 905,454.94 and 384,155.31 is: 530,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,112.87 : 905,454.94 = 384,155.31 : x
  2. Step 2: Convert to fraction form
    656,112.87/905,454.94 = 384,155.31/x
  3. Step 3: Cross multiply
    656,112.87x = 905,454.94 × 384,155.31
  4. Step 4: Simplify right side
    656,112.87x = 347,835,323,166.73
  5. Step 5: Solve for x
    x = 347,835,323,166.73/656,112.87
  6. Step 6: Final answer
    x = 530,145.56

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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.