Home / 1,228,907.60-1,695,900.84-685,077.92

Finding the Fourth Proportional to 1,228,907.60, 1,695,900.84 and 685,077.92

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Solution

The fourth proportional to 1,228,907.60, 1,695,900.84 and 685,077.92 is: 945,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,907.60 : 1,695,900.84 = 685,077.92 : x
  2. Step 2: Convert to fraction form
    1,228,907.60/1,695,900.84 = 685,077.92/x
  3. Step 3: Cross multiply
    1,228,907.60x = 1,695,900.84 × 685,077.92
  4. Step 4: Simplify right side
    1,228,907.60x = 1,161,824,219,993.45
  5. Step 5: Solve for x
    x = 1,161,824,219,993.45/1,228,907.60
  6. Step 6: Final answer
    x = 945,412.19

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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.