Home / 1,292,080.41-1,783,053-719,120.70

Finding the Fourth Proportional to 1,292,080.41, 1,783,053 and 719,120.70

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Solution

The fourth proportional to 1,292,080.41, 1,783,053 and 719,120.70 is: 992,376.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,080.41 : 1,783,053 = 719,120.70 : x
  2. Step 2: Convert to fraction form
    1,292,080.41/1,783,053 = 719,120.70/x
  3. Step 3: Cross multiply
    1,292,080.41x = 1,783,053 × 719,120.70
  4. Step 4: Simplify right side
    1,292,080.41x = 1,282,230,321,497.10
  5. Step 5: Solve for x
    x = 1,282,230,321,497.10/1,292,080.41
  6. Step 6: Final answer
    x = 992,376.57

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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.