Home / 1,296,859.26-1,789,658.90-753,128.74

Finding the Fourth Proportional to 1,296,859.26, 1,789,658.90 and 753,128.74

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Solution

The fourth proportional to 1,296,859.26, 1,789,658.90 and 753,128.74 is: 1,039,313.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,859.26 : 1,789,658.90 = 753,128.74 : x
  2. Step 2: Convert to fraction form
    1,296,859.26/1,789,658.90 = 753,128.74/x
  3. Step 3: Cross multiply
    1,296,859.26x = 1,789,658.90 × 753,128.74
  4. Step 4: Simplify right side
    1,296,859.26x = 1,347,843,552,386.79
  5. Step 5: Solve for x
    x = 1,347,843,552,386.79/1,296,859.26
  6. Step 6: Final answer
    x = 1,039,313.67

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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.