Home / 1,253,628.19-1,730,013.78-680,668.36

Finding the Fourth Proportional to 1,253,628.19, 1,730,013.78 and 680,668.36

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Solution

The fourth proportional to 1,253,628.19, 1,730,013.78 and 680,668.36 is: 939,326.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,628.19 : 1,730,013.78 = 680,668.36 : x
  2. Step 2: Convert to fraction form
    1,253,628.19/1,730,013.78 = 680,668.36/x
  3. Step 3: Cross multiply
    1,253,628.19x = 1,730,013.78 × 680,668.36
  4. Step 4: Simplify right side
    1,253,628.19x = 1,177,565,630,356.59
  5. Step 5: Solve for x
    x = 1,177,565,630,356.59/1,253,628.19
  6. Step 6: Final answer
    x = 939,326.07

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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.