Home / 1,969,039.80-2,953,406.10-770,729.40

Finding the Fourth Proportional to 1,969,039.80, 2,953,406.10 and 770,729.40

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Solution

The fourth proportional to 1,969,039.80, 2,953,406.10 and 770,729.40 is: 1,156,033.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,039.80 : 2,953,406.10 = 770,729.40 : x
  2. Step 2: Convert to fraction form
    1,969,039.80/2,953,406.10 = 770,729.40/x
  3. Step 3: Cross multiply
    1,969,039.80x = 2,953,406.10 × 770,729.40
  4. Step 4: Simplify right side
    1,969,039.80x = 2,276,276,911,409.34
  5. Step 5: Solve for x
    x = 2,276,276,911,409.34/1,969,039.80
  6. Step 6: Final answer
    x = 1,156,033.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.