Home / 991,350.54-1,368,060.36-561,712.68

Finding the Fourth Proportional to 991,350.54, 1,368,060.36 and 561,712.68

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Solution

The fourth proportional to 991,350.54, 1,368,060.36 and 561,712.68 is: 775,161.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,350.54 : 1,368,060.36 = 561,712.68 : x
  2. Step 2: Convert to fraction form
    991,350.54/1,368,060.36 = 561,712.68/x
  3. Step 3: Cross multiply
    991,350.54x = 1,368,060.36 × 561,712.68
  4. Step 4: Simplify right side
    991,350.54x = 768,456,851,217.37
  5. Step 5: Solve for x
    x = 768,456,851,217.37/991,350.54
  6. Step 6: Final answer
    x = 775,161.58

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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.