Home / 1,252,400.85-1,728,313.77-679,440.87

Finding the Fourth Proportional to 1,252,400.85, 1,728,313.77 and 679,440.87

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Solution

The fourth proportional to 1,252,400.85, 1,728,313.77 and 679,440.87 is: 937,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,400.85 : 1,728,313.77 = 679,440.87 : x
  2. Step 2: Convert to fraction form
    1,252,400.85/1,728,313.77 = 679,440.87/x
  3. Step 3: Cross multiply
    1,252,400.85x = 1,728,313.77 × 679,440.87
  4. Step 4: Simplify right side
    1,252,400.85x = 1,174,287,011,521.78
  5. Step 5: Solve for x
    x = 1,174,287,011,521.78/1,252,400.85
  6. Step 6: Final answer
    x = 937,628.72

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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.