Home / 1,247,571.26-1,721,658.64-688,783.65

Finding the Fourth Proportional to 1,247,571.26, 1,721,658.64 and 688,783.65

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Solution

The fourth proportional to 1,247,571.26, 1,721,658.64 and 688,783.65 is: 950,527.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,571.26 : 1,721,658.64 = 688,783.65 : x
  2. Step 2: Convert to fraction form
    1,247,571.26/1,721,658.64 = 688,783.65/x
  3. Step 3: Cross multiply
    1,247,571.26x = 1,721,658.64 × 688,783.65
  4. Step 4: Simplify right side
    1,247,571.26x = 1,185,850,320,391.28
  5. Step 5: Solve for x
    x = 1,185,850,320,391.28/1,247,571.26
  6. Step 6: Final answer
    x = 950,527.12

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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.