Home / 1,190,680.90-1,643,151.01-646,820.77

Finding the Fourth Proportional to 1,190,680.90, 1,643,151.01 and 646,820.77

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Solution

The fourth proportional to 1,190,680.90, 1,643,151.01 and 646,820.77 is: 892,618.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,680.90 : 1,643,151.01 = 646,820.77 : x
  2. Step 2: Convert to fraction form
    1,190,680.90/1,643,151.01 = 646,820.77/x
  3. Step 3: Cross multiply
    1,190,680.90x = 1,643,151.01 × 646,820.77
  4. Step 4: Simplify right side
    1,190,680.90x = 1,062,824,201,514.48
  5. Step 5: Solve for x
    x = 1,062,824,201,514.48/1,190,680.90
  6. Step 6: Final answer
    x = 892,618.84

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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.