Home / 1,190,965.71-1,643,512.77-647,109.84

Finding the Fourth Proportional to 1,190,965.71, 1,643,512.77 and 647,109.84

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Solution

The fourth proportional to 1,190,965.71, 1,643,512.77 and 647,109.84 is: 893,000.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,965.71 : 1,643,512.77 = 647,109.84 : x
  2. Step 2: Convert to fraction form
    1,190,965.71/1,643,512.77 = 647,109.84/x
  3. Step 3: Cross multiply
    1,190,965.71x = 1,643,512.77 × 647,109.84
  4. Step 4: Simplify right side
    1,190,965.71x = 1,063,533,285,632.66
  5. Step 5: Solve for x
    x = 1,063,533,285,632.66/1,190,965.71
  6. Step 6: Final answer
    x = 893,000.76

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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.