Home / 1,287,500.84-1,776,780.34-714,577.92

Finding the Fourth Proportional to 1,287,500.84, 1,776,780.34 and 714,577.92

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Solution

The fourth proportional to 1,287,500.84, 1,776,780.34 and 714,577.92 is: 986,133.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,500.84 : 1,776,780.34 = 714,577.92 : x
  2. Step 2: Convert to fraction form
    1,287,500.84/1,776,780.34 = 714,577.92/x
  3. Step 3: Cross multiply
    1,287,500.84x = 1,776,780.34 × 714,577.92
  4. Step 4: Simplify right side
    1,287,500.84x = 1,269,647,999,654.09
  5. Step 5: Solve for x
    x = 1,269,647,999,654.09/1,287,500.84
  6. Step 6: Final answer
    x = 986,133.73

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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.