Home / 991,787.84-1,368,669.12-539,077.76

Finding the Fourth Proportional to 991,787.84, 1,368,669.12 and 539,077.76

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Solution

The fourth proportional to 991,787.84, 1,368,669.12 and 539,077.76 is: 743,928.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,787.84 : 1,368,669.12 = 539,077.76 : x
  2. Step 2: Convert to fraction form
    991,787.84/1,368,669.12 = 539,077.76/x
  3. Step 3: Cross multiply
    991,787.84x = 1,368,669.12 × 539,077.76
  4. Step 4: Simplify right side
    991,787.84x = 737,819,083,390.77
  5. Step 5: Solve for x
    x = 737,819,083,390.77/991,787.84
  6. Step 6: Final answer
    x = 743,928.34

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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.