Home / 991,639.35-1,367,994.90-719,109.39

Finding the Fourth Proportional to 991,639.35, 1,367,994.90 and 719,109.39

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Solution

The fourth proportional to 991,639.35, 1,367,994.90 and 719,109.39 is: 992,032.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,639.35 : 1,367,994.90 = 719,109.39 : x
  2. Step 2: Convert to fraction form
    991,639.35/1,367,994.90 = 719,109.39/x
  3. Step 3: Cross multiply
    991,639.35x = 1,367,994.90 × 719,109.39
  4. Step 4: Simplify right side
    991,639.35x = 983,737,978,062.11
  5. Step 5: Solve for x
    x = 983,737,978,062.11/991,639.35
  6. Step 6: Final answer
    x = 992,032.01

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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.