Home / 1,203,155.76-1,660,354.94-666,611.76

Finding the Fourth Proportional to 1,203,155.76, 1,660,354.94 and 666,611.76

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Solution

The fourth proportional to 1,203,155.76, 1,660,354.94 and 666,611.76 is: 919,924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,155.76 : 1,660,354.94 = 666,611.76 : x
  2. Step 2: Convert to fraction form
    1,203,155.76/1,660,354.94 = 666,611.76/x
  3. Step 3: Cross multiply
    1,203,155.76x = 1,660,354.94 × 666,611.76
  4. Step 4: Simplify right side
    1,203,155.76x = 1,106,812,128,778.09
  5. Step 5: Solve for x
    x = 1,106,812,128,778.09/1,203,155.76
  6. Step 6: Final answer
    x = 919,924.22

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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.